Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- 2006 (9)
- ISM: Clouds (2)
- Stars: formation (2)
- Active learning (1)
- Andes (1)
-
- Anisotropy of magnetic susceptibility; electron backscatter diffraction; haematite; haemo-ilmenite; lamellar magnetism; natural remanent magnetization (1)
- Artificial Intelligence (1)
- Clarke gradient (1)
- Climate change (1)
- Climate change, future climate (1)
- Clustering (1)
- Constant mean curvature surfaces (1)
- Constrained minimization (1)
- Data mining (1)
- Database Applications (1)
- Database Management (1)
- Digital Libraries (1)
- Document and Text processing (1)
- Electronic Publishing (1)
- Galaxies: active galaxies (1)
- Gehring link problem (1)
- Glaciers (1)
- Graphical Models (1)
- Graphical models (1)
- Heterodyne Imaging arrays (1)
- ISM: Individual alphanumeric SMM4 (1)
- Ideal knot (1)
- Information Storage and Retrieval (1)
- Information extraction (1)
- Kuhn–Tucker theorem (1)
- Publication
-
- Andrew McCallum (17)
- Michael Williams (10)
- Panos Kevrekidis (5)
- Christian Santangelo (4)
- Gopal Narayanan (3)
-
- John Donoghue (3)
- Jonathan Machta (3)
- Kevin R. Kittilstved (3)
- Egor Babaev (2)
- Luc Rey-Bellet (2)
- Raymond S Bradley (2)
- Robert Kusner (2)
- Erin M. Conlon (1)
- John Buonaccorsi (1)
- Krishna Kumar (1)
- Laurie Brown (1)
- Mauro Giavalisco (1)
- Paul Gunnells (1)
- Qian-Yong Chen (1)
- Timothy O. Randhir (1)
- Tom Braden (1)
- Weimin Chen (1)
Articles 31 - 60 of 66
Full-Text Articles in Entire DC Network
Crossover States Of Vortex Matter In Trapped Bose Condensates, S. Kragset, Egor Babaev, A. Sudbo
Crossover States Of Vortex Matter In Trapped Bose Condensates, S. Kragset, Egor Babaev, A. Sudbo
Egor Babaev
We perform Monte Carlo studies of vortices in three dimensions in a cylindrical confinement, with uniform and nonuniform density. The former is relevant to rotating 4He, the latter is relevant to a rotating trapped Bose condensate. In the former case we find dominant angular thermal vortex fluctuations close to the cylinder wall. For the latter case, a novel effect is that at low temperatures the vortex solid close to the center of the trap crosses directly over to a tension-less vortex tangle near the edge of the trap. At higher temperatures an intermediate tension-full vortex liquid located between the vortex …
Complexity, Parallel Computation And Statistical Physics, Jonathan Machta
Complexity, Parallel Computation And Statistical Physics, Jonathan Machta
Jonathan Machta
The intuition that a long history is required for the emergence of complexity in natural systems is formalized using the notion of depth. The depth of a system is defined in terms of the number of parallel computational steps needed to simulate it. Depth provides an objective, irreducible measure of history that is applicable to systems of the kind studied in statistical physics. It is argued that physical complexity cannot occur in the absence of substantial depth and that depth is a useful proxy for physical complexity. The ideas are illustrated for a variety of systems in statistical physics
On 3+1 Dimensional Scalar Field Cosmologies, Panos Kevrekidis
On 3+1 Dimensional Scalar Field Cosmologies, Panos Kevrekidis
Panos Kevrekidis
In this communication, we analyze the case of 3+1 dimensional scalar field cosmologies in the presence, as well as in the absence of spatial curvature, in isotropic, as well as in anisotropic settings. Our results extend those of Hawkins and Lidsey [Phys. Rev. D {\bf 66}, 023523 (2002)], by including the non-flat case. The Ermakov-Pinney methodology is developed in a general form, allowing through the converse results presented herein to use it as a tool for constructing new solutions to the original equations. As an example of this type a special blowup solution recently obtained in Christodoulakis {\it et al.} …
Ergodic Properties Of Markov Processes, L Rey-Bellet
Ergodic Properties Of Markov Processes, L Rey-Bellet
Luc Rey-Bellet
In these notes we discuss Markov processes, in particular stochastic differential equations (SDE) and develop some tools to analyze their long-time behavior. There are several ways to analyze such properties, and our point of view will be to use systematically Liapunov functions which allow a nice characterization of the ergodic properties. In this we follow, at least in spirit, the excellent book of Meyn and Tweedie [7]. In general a Liapunov function W is a positive function which grows at infinity and satisfies an inequality involving the generator of the Markov process L: roughly speaking we have the implications (α …
Open Classical Systems, L Rey-Bellet
Open Classical Systems, L Rey-Bellet
Luc Rey-Bellet
Open systems are usually understood as a small Hamiltonian system (i.e. with a finite number of degrees of freedom) in contact with one or several large reservoirs. There are several ways to model reservoirs and we will take the point of view that the reservoirs are also Hamiltonian systems themselves. It is a convenient physical and mathematical idealization to separate scales and assume that the reservoirs have infinitely many degrees of freedom. We will also assume that, to start with, the reservoirs are in equilibrium, i.e., the initial states of the reservoirs are distributed according to Gibbs distribution with given …
Parity-Violating Electron Scattering From ^4 He And The Strange Electric Form Factor Of The The Nucleon, K. A. Aniol, D. S. Armstrong, T. Averett, H. Benaoum, P. Y. Bertin, E. Burtin, J. Cahoon, G. D. Cates, C. C. Chang, Y. C. Chao, J. P. Chen, Seonho Choi, E. Chudakov, B. Craver, F. Cusanno, P. Decowsky, D. Deepa, C. Ferdi, R. J. Feuerbach, M. J. Finn, S. Frullani, K. Fuoti, F. Garibaldi, R. Gilman, A. Glamazdin, V. Gorbenko, J. M. Grames, J. Hansknecht, D. W. Higinbotham, R. Holmes, T. Holmstrom, T. B. Humensky, H. Ibrahim, C. W. De Jager, X. Jiang, L. J. Kaufman, A. Kelleher, A. Kolarkar, S. Kowalski, Krishna Kumar, D. Lambert, P. Laviolette, J. Lerose, D. Lhuillier, N. Liyanage, D. J. Margaziotis, M. Mazouz, K. Mccormick, D. G. Meekins, Z. E. Meziani, R. Michaels, B. Moffit, P. Monaghan, C. Munoz-Camacho, S. Nanda, V. Nelyubin, D. Neyret, K. D. Paschke, M. Poelker, R. Pomatsalyuk, Y. Qiang, B. Reitz, J. Roche, A. Saha, J. Singh, R. Snyder, P. A. Souder, R. Subedi, R. Suleiman, V. Sulkosky, W. A. Tobias, G. M. Urciuoli, A. Vacheret, E. Voutier, K. Wang, R. Wilson, B. Wojtsekhowski, X. Zheng
Parity-Violating Electron Scattering From ^4 He And The Strange Electric Form Factor Of The The Nucleon, K. A. Aniol, D. S. Armstrong, T. Averett, H. Benaoum, P. Y. Bertin, E. Burtin, J. Cahoon, G. D. Cates, C. C. Chang, Y. C. Chao, J. P. Chen, Seonho Choi, E. Chudakov, B. Craver, F. Cusanno, P. Decowsky, D. Deepa, C. Ferdi, R. J. Feuerbach, M. J. Finn, S. Frullani, K. Fuoti, F. Garibaldi, R. Gilman, A. Glamazdin, V. Gorbenko, J. M. Grames, J. Hansknecht, D. W. Higinbotham, R. Holmes, T. Holmstrom, T. B. Humensky, H. Ibrahim, C. W. De Jager, X. Jiang, L. J. Kaufman, A. Kelleher, A. Kolarkar, S. Kowalski, Krishna Kumar, D. Lambert, P. Laviolette, J. Lerose, D. Lhuillier, N. Liyanage, D. J. Margaziotis, M. Mazouz, K. Mccormick, D. G. Meekins, Z. E. Meziani, R. Michaels, B. Moffit, P. Monaghan, C. Munoz-Camacho, S. Nanda, V. Nelyubin, D. Neyret, K. D. Paschke, M. Poelker, R. Pomatsalyuk, Y. Qiang, B. Reitz, J. Roche, A. Saha, J. Singh, R. Snyder, P. A. Souder, R. Subedi, R. Suleiman, V. Sulkosky, W. A. Tobias, G. M. Urciuoli, A. Vacheret, E. Voutier, K. Wang, R. Wilson, B. Wojtsekhowski, X. Zheng
Krishna Kumar
We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q2 = 0.091 GeV2 . From these data, for the first time, the strange electric form factor of the nucleon G(E)s can be isolated. The measured asymmetry of A(PV) = (6.72 +/- 0.84(stat) +/- 0.21(syst) x 10(-6) yields a value of G(E)s = -0.038 +/- 0.042(stat) +/- 0.010(syst), consistent with zero.
Numerical Study Of The Random Field Ising Model At Zero And Positive Temperature, Yong Wu, Jonathan Machta
Numerical Study Of The Random Field Ising Model At Zero And Positive Temperature, Yong Wu, Jonathan Machta
Jonathan Machta
In this paper the three-dimensional random-field Ising model is studied at both zero temperature and positive temperature. Critical exponents are extracted at zero temperature by finite size scaling analysis of large discontinuities in the bond energy. The heat capacity exponent α is found to be near zero. The ground states are determined for a range of external field and disorder strength near the zero temperature critical point and the scaling of ground state tilings of the field-disorder plane is discussed. At positive temperature the specific heat and the susceptibility are obtained using the Wang-Landau algorithm. It is found that sharp …
Computing Counterion Densities At Intermediate Coupling, Christian Santangelo
Computing Counterion Densities At Intermediate Coupling, Christian Santangelo
Christian Santangelo
By decomposing the Coulomb interaction into a long-distance component appropriate for mean-field theory, and a non-mean-field short distance component, we compute the counterion density near a charged surface for all values of the counterion coupling parameter. A modified strong-coupling expansion that is manifestly finite at all coupling strengths is used to treat the short-distance component. We find a nonperturbative correction related to the lateral counterion correlations that modifies the density at intermediate coupling.
Solar Modulation Of Little Ice Age Climate In The Tropical Andes, P. J. Polissar, M. B. Abbott, A. P. Wolfe, M. Bezada, V. Rull, Raymond S. Bradley
Solar Modulation Of Little Ice Age Climate In The Tropical Andes, P. J. Polissar, M. B. Abbott, A. P. Wolfe, M. Bezada, V. Rull, Raymond S. Bradley
Raymond S Bradley
The underlying causes of late-Holocene climate variability in the tropics are incompletely understood. Here we report a 1,500-year reconstruction of climate history and glaciation in the Venezuelan Andes using lake sediments. Four glacial advances occurred between anno Domini (A.D.) 1250 and 1810, coincident with solar-activity minima. Temperature declines of −3.2 ± 1.4°C and precipitation increases of ≈20% are required to produce the observed glacial responses. These results highlight the sensitivity of high-altitude tropical regions to relatively small changes in radiative forcing, implying even greater probable responses to future anthropogenic forcing.
Search For The Theta(+) Pentaquark In The Reaction Gamma D -> Pk(-)K(+)N, B Mckinnon, K Hicks, Na Baltzell, Ds Carman, Md Mestayer, T Mibe, M Mirazita, S Niccolai, P Rossi, S Stepanyan, Dj Tedeschi, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, V Batourine, M Battaglieri, I Bedlinskiy, M Bellis, N Benmouna, Bl Berman, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, S Chen, Pl Cole, P Collins, P Coltharp, D Crabb, V Crede, D Dale, R De Masi, R Devita, E De Sanctis, Pv Degtyarenko, A Deur, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, G Fedotov, G Feldman, H Funsten, M Gabrielyan, L Gan, M Garcon, A Gasparian, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, A Gonenc, Rw Gothe, Ka Griffioen, M Guidal, N Guler, L Guo, V Gyurjyan, Rs Hakobyan, Fw Hersman, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, J Langheinrich, D Lawrence, K Livingston, H Lu, M Maccormick, Ba Mecking, Ca Meyer, K Mikhailov, R Miskimen, V Mokeev, Sa Morrow, M Moteabbed, Gs Mutchler, I Nakagawa, P Nadel-Turonski, R Nasseripour, G Niculescu, I Niculescu, Bb Niczyporuk, Mr Niroula, Ra Niyazov, M Nozar, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, O Pogorelko, S Pozdniakov, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, M Taiuti, A Teymurazyan, U Thoma, A Tkabladze, S Tkachenko, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao, Z Zhao
Search For The Theta(+) Pentaquark In The Reaction Gamma D -> Pk(-)K(+)N, B Mckinnon, K Hicks, Na Baltzell, Ds Carman, Md Mestayer, T Mibe, M Mirazita, S Niccolai, P Rossi, S Stepanyan, Dj Tedeschi, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, V Batourine, M Battaglieri, I Bedlinskiy, M Bellis, N Benmouna, Bl Berman, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, S Chen, Pl Cole, P Collins, P Coltharp, D Crabb, V Crede, D Dale, R De Masi, R Devita, E De Sanctis, Pv Degtyarenko, A Deur, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, G Fedotov, G Feldman, H Funsten, M Gabrielyan, L Gan, M Garcon, A Gasparian, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, A Gonenc, Rw Gothe, Ka Griffioen, M Guidal, N Guler, L Guo, V Gyurjyan, Rs Hakobyan, Fw Hersman, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, J Langheinrich, D Lawrence, K Livingston, H Lu, M Maccormick, Ba Mecking, Ca Meyer, K Mikhailov, R Miskimen, V Mokeev, Sa Morrow, M Moteabbed, Gs Mutchler, I Nakagawa, P Nadel-Turonski, R Nasseripour, G Niculescu, I Niculescu, Bb Niczyporuk, Mr Niroula, Ra Niyazov, M Nozar, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, O Pogorelko, S Pozdniakov, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, M Taiuti, A Teymurazyan, U Thoma, A Tkabladze, S Tkachenko, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao, Z Zhao
Michael Williams
A search for the Θ+ in the reaction γd→pK-K+n was completed using the CLAS detector at Jefferson Lab. A study of the same reaction, published earlier, reported the observation of a narrow Θ+ resonance. The present experiment, with more than 30 times the integrated luminosity of our earlier measurement, does not show any evidence for a narrow pentaquark resonance. The angle-integrated upper limit on Θ+ production in the mass range of 1.52–1.56 GeV/c2 for the γd→pK-Θ+ reaction is 0.3 nb (95% C.L.). This upper limit depends on assumptions made for the mass and angular distribution of Θ+ production. Using Λ(1520) …
Measurement Of Deeply Virtual Compton Scattering With A Polarized-Proton Target, S Chen, H Avakian, Vd Burkert, P Eugenio, G Adams, M Amarian, P Ambrozewicz, M Anghinolfi, G Asryan, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, P Bosted, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, A Cazes, Pl Cole, P Collins, P Coltharp, D Cords, P Corvisiero, D Crabb, H Crannell, V Crede, Jp Cummings, R De Masi, R Devita, E De Sanctis, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, Ks Dhuga, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L El Fassi, L Elouadrhiri, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, A Gonenc, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, K Hafidi, H Hakobyan, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, El Isupov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, C Keith, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, M Klusman, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, J Li, Acs Lima, K Livingston, H Lu, K Lukashin, M Maccormick, N Markov, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, M Moteabbed, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, N Natasha, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Mr Niroula, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, Sa Philips, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, I Popa, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, J Shaw, Nv Shvedunov, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, R Suleiman, M Taiuti, Dj Tedeschi, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, M Vanderhaeghen, Mf Vineyard, Av Vlassov, Dp Watts, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang, B Zhao, Z Zhao
Measurement Of Deeply Virtual Compton Scattering With A Polarized-Proton Target, S Chen, H Avakian, Vd Burkert, P Eugenio, G Adams, M Amarian, P Ambrozewicz, M Anghinolfi, G Asryan, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, P Bosted, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, A Cazes, Pl Cole, P Collins, P Coltharp, D Cords, P Corvisiero, D Crabb, H Crannell, V Crede, Jp Cummings, R De Masi, R Devita, E De Sanctis, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, Ks Dhuga, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L El Fassi, L Elouadrhiri, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, A Gonenc, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, K Hafidi, H Hakobyan, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, El Isupov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, C Keith, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, M Klusman, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, J Li, Acs Lima, K Livingston, H Lu, K Lukashin, M Maccormick, N Markov, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, M Moteabbed, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, N Natasha, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Mr Niroula, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, Sa Philips, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, I Popa, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, J Shaw, Nv Shvedunov, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, R Suleiman, M Taiuti, Dj Tedeschi, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, M Vanderhaeghen, Mf Vineyard, Av Vlassov, Dp Watts, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang, B Zhao, Z Zhao
Michael Williams
The longitudinal target-spin asymmetry AUL for the exclusive electroproduction of high-energy photons was measured for the first time in ep-->e;'pgamma. The data have been accumulated at JLab with the CLAS spectrometer using 5.7 GeV electrons and a longitudinally polarized NH3 target. A significant azimuthal angular dependence was observed, resulting from the interference of the deeply virtual Compton scattering and Bethe-Heitler processes. The amplitude of the sinvarphi moment is 0.252+/-0.042stat+/-0.020sys. Theoretical calculations are in good agreement with the magnitude and the kinematic dependence of the target-spin asymmetry, which is sensitive to the generalized parton distributions H and H.
Η' Photoproduction On The Proton For Photon Energies From 1.527 To 2.227 Gev, M. Dugger, J. P . Ball, P. Collins, E. Pasyuk, B. G. Ritchie, G. Adams, P. Ambrozewicz, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Asryan, G. Audit, H. Avakian, H. Bagdasaryan, N. Baillie, N. A. Baltzell, S. Barrow, V. Batourine, M. Battaglieri, K. Beard, I. Bedlinsky, M. Bektasoglu, M. Bellis, N. Benmouna, B.L Berman, N. Bianchi, A. S. Biselli, B. E. Bonner, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bultmann, V. D. Burkert, C. Butcceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, S. Chen, P. L . Cole, A. Coleman, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. De Sanctis, R. Devita, P. V. Degtyarenko, H. Denizli, L. Dennis, A. Deur, K. V. Dharmawardane, K. S. Dhuga, C. Djalali, G. E. Dodge, J. Donnelly, D. Doughty, P. Dragovitsch, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. Elouadhiri, A. Empl, P. Eugenio, R. Fatemi, G. Fedotov, G. Feldman, R J. Feuerbach, T. A. Forest, H. Funsten, M Garcon, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, F.X. Girod, J. T. Goetz, R. W. Goethe, K A. Griffioen, M. Cuidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidkas, Michael Williams
Η' Photoproduction On The Proton For Photon Energies From 1.527 To 2.227 Gev, M. Dugger, J. P . Ball, P. Collins, E. Pasyuk, B. G. Ritchie, G. Adams, P. Ambrozewicz, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Asryan, G. Audit, H. Avakian, H. Bagdasaryan, N. Baillie, N. A. Baltzell, S. Barrow, V. Batourine, M. Battaglieri, K. Beard, I. Bedlinsky, M. Bektasoglu, M. Bellis, N. Benmouna, B.L Berman, N. Bianchi, A. S. Biselli, B. E. Bonner, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bultmann, V. D. Burkert, C. Butcceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, S. Chen, P. L . Cole, A. Coleman, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. De Sanctis, R. Devita, P. V. Degtyarenko, H. Denizli, L. Dennis, A. Deur, K. V. Dharmawardane, K. S. Dhuga, C. Djalali, G. E. Dodge, J. Donnelly, D. Doughty, P. Dragovitsch, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. Elouadhiri, A. Empl, P. Eugenio, R. Fatemi, G. Fedotov, G. Feldman, R J. Feuerbach, T. A. Forest, H. Funsten, M Garcon, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, F.X. Girod, J. T. Goetz, R. W. Goethe, K A. Griffioen, M. Cuidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidkas, Michael Williams
Michael Williams
No abstract provided.
Measurement Of Two- And Three-Nucleon Short-Range Correlation Probabilities In Nuclei, Ks Egiyan, Nb Dashyan, Mm Sargsian, Mi Strikman, Lb Weinstein, G Adams, P Ambrozewicz, M Anghinolfi, B Asavapibhop, G Asryan, H Avakian, H Baghdasaryan, N Baillie, Jp Ball, Na Baltzell, V Batourine, M Battaglieri, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wk Brooks, S Bultmann, Vd Burkert, C Bultuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, S Chen, Pl Cole, P Coltharp, P Corvisiero, D Crabb, H Crannell, Jp Cummings, Ed Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Fedotov, Rj Feuerbach, Ta Forest, H Funsten, G Gavalian, Ng Gevorgyan, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, A Klimenko, M Klusman, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, S Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, K Livingston, Lc Maximon, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, Sa Morrow, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Peterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, J Shaw, Es Smith, Lc Smith, Di Sober, A Stavinsky, S Stepanyan, Be Stokes, P Stoler, S Strauch, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, R Thompson, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang
Measurement Of Two- And Three-Nucleon Short-Range Correlation Probabilities In Nuclei, Ks Egiyan, Nb Dashyan, Mm Sargsian, Mi Strikman, Lb Weinstein, G Adams, P Ambrozewicz, M Anghinolfi, B Asavapibhop, G Asryan, H Avakian, H Baghdasaryan, N Baillie, Jp Ball, Na Baltzell, V Batourine, M Battaglieri, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wk Brooks, S Bultmann, Vd Burkert, C Bultuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, S Chen, Pl Cole, P Coltharp, P Corvisiero, D Crabb, H Crannell, Jp Cummings, Ed Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Fedotov, Rj Feuerbach, Ta Forest, H Funsten, G Gavalian, Ng Gevorgyan, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, A Klimenko, M Klusman, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, S Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, K Livingston, Lc Maximon, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, Sa Morrow, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Peterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, J Shaw, Es Smith, Lc Smith, Di Sober, A Stavinsky, S Stepanyan, Be Stokes, P Stoler, S Strauch, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, R Thompson, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang
Michael Williams
The ratios of inclusive electron scattering cross sections of 4He, 12C, and 56Fe to 3He have been measured at 1 < xB <. At Q2 > 1.4 GeV2, the ratios exhibit two separate plateaus, at 1.5 < xB < 2 and at xB > 2.25. This pattern is predicted by models that include 2- and 3-nucleon short-range correlations (SRC). Relative to A = 3, the per-nucleon probabilities of 3-nucleon SRC are 2.3, 3.1, and 4.4 times larger for A = 4, 12, and 56. This is the first measurement of 3-nucleon SRC probabilities in nuclei.
Electron Scattering From High-Momentum Neutrons In Deuterium, Av Klimenko, Se Kuhn, C Butuceanu, Ks Egiyan, Ka Griffioen, G Adams, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wk Brooks, S Bultmann, Vd Burkert, Jr Calarco, Sl Careccia, Ds Carman, A Cazes, S Chen, Pl Cole, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, Nb Dashyan, R Devita, Ed Sanctis, Pv Degtyarenko, H Denizli, L Dennis, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, S Dytman, Op Dzyubak, H Egiyan, L Elouadrhiri, P Eugenio, R Fatemi, G Fedotov, Rg Fersch, Rj Feuerbach, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, A Gonenc, Cio Gordon, Rw Gothe, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, J Li, K Livingston, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, S Mehrabyan, Jj Melone, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, S Strauch, M Taiuti, Dj Tedeschi, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao
Electron Scattering From High-Momentum Neutrons In Deuterium, Av Klimenko, Se Kuhn, C Butuceanu, Ks Egiyan, Ka Griffioen, G Adams, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wk Brooks, S Bultmann, Vd Burkert, Jr Calarco, Sl Careccia, Ds Carman, A Cazes, S Chen, Pl Cole, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, Nb Dashyan, R Devita, Ed Sanctis, Pv Degtyarenko, H Denizli, L Dennis, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, S Dytman, Op Dzyubak, H Egiyan, L Elouadrhiri, P Eugenio, R Fatemi, G Fedotov, Rg Fersch, Rj Feuerbach, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, A Gonenc, Cio Gordon, Rw Gothe, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, J Li, K Livingston, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, S Mehrabyan, Jj Melone, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, S Strauch, M Taiuti, Dj Tedeschi, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao
Michael Williams
We report results from an experiment measuring the semiinclusive reaction 2H(e,e'ps) in which the proton ps is moving at a large angle relative to the momentum transfer. If we assume that the proton was a spectator to the reaction taking place on the neutron in deuterium, the initial state of that neutron can be inferred. This method, known as spectator tagging, can be used to study electron scattering from high-momentum (off-shell) neutrons in deuterium. The data were taken with a 5.765 GeV electron beam on a deuterium target in Jefferson Laboratory's Hall B, using the CEBAF large acceptance spectrometer. A …
Search For Theta(+)(1540) Pentaquark In High-Statistics Measurement Of Gamma P ->(K)Over-Bar(0)K(+)N At Clas, M Battaglieri, R De Vita, V Kubarovsky, L Guo, Gs Mutchler, P Stoler, Dp Weygand, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, V Batourine, I Bedlinskiy, M Bellis, N Benmouna, Bl Berman, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, S Chen, E Clinton, Pl Cole, P Coltharp, D Crabb, H Crannell, Jp Cummings, D Dale, E De Sanctis, Pv Degtyarenko, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, G Fedotov, H Funsten, My Gabrielyan, L Gan, M Garcon, A Gasparian, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, O Glamazdin, J Goett, Jt Goetz, E Golovach, A Gonenc, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, N Guler, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, Av Klimenko, M Kossov, Lh Kramer, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, K Livingston, B Mckinnon, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mochalov, V Mokeev, L Morand, Sa Morrow, P Nadel-Turonski, I Nakagawa, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, S Pozdniakov, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, Ii Strakovsky, S Strauch, M Taiuti, Dj Tedeschi, A Teymurazyan, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao
Search For Theta(+)(1540) Pentaquark In High-Statistics Measurement Of Gamma P ->(K)Over-Bar(0)K(+)N At Clas, M Battaglieri, R De Vita, V Kubarovsky, L Guo, Gs Mutchler, P Stoler, Dp Weygand, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, V Batourine, I Bedlinskiy, M Bellis, N Benmouna, Bl Berman, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, S Chen, E Clinton, Pl Cole, P Coltharp, D Crabb, H Crannell, Jp Cummings, D Dale, E De Sanctis, Pv Degtyarenko, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, G Fedotov, H Funsten, My Gabrielyan, L Gan, M Garcon, A Gasparian, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, O Glamazdin, J Goett, Jt Goetz, E Golovach, A Gonenc, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, N Guler, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, Av Klimenko, M Kossov, Lh Kramer, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, K Livingston, B Mckinnon, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mochalov, V Mokeev, L Morand, Sa Morrow, P Nadel-Turonski, I Nakagawa, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, S Pozdniakov, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, Ii Strakovsky, S Strauch, M Taiuti, Dj Tedeschi, A Teymurazyan, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao
Michael Williams
The exclusive reaction gamma p ->(K) over bar (0)K(+)n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Theta(+)(1540)-> nK(+). The decay to nK(+) requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70 pb(-1). No evidence for the Theta(+) pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK(+) mass. The 95% C.L. upper limit on the total …
Measurement Of The Deuteron Structure Function F-2 In The Resonance Region And Evaluation Of Its Moments, M Osipenko, G Ricco, S Simula, M Battaglieri, M Ripani, G Adams, P Ambrozewicz, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, A Cazes, S Chen, Pl Cole, A Coleman, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, E De Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Fedotov, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, Acs Lima, K Livingston, K Lukashin, Jj Manak, C Marchand, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, S Mehrabyan, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, G Nefedov, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, Ai Ostrovidov, K Park, E Pasyuk, Sa Philips, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, J Shaw, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, S Strauch, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang
Measurement Of The Deuteron Structure Function F-2 In The Resonance Region And Evaluation Of Its Moments, M Osipenko, G Ricco, S Simula, M Battaglieri, M Ripani, G Adams, P Ambrozewicz, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, A Cazes, S Chen, Pl Cole, A Coleman, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, E De Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Fedotov, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, Acs Lima, K Livingston, K Lukashin, Jj Manak, C Marchand, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, S Mehrabyan, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, G Nefedov, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, Ai Ostrovidov, K Park, E Pasyuk, Sa Philips, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, J Shaw, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, S Strauch, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang
Michael Williams
Inclusive electron scattering off the deuteron has been measured to extract the deuteron structure function F2 with the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. The measurement covers the entire resonance region from the quasi-elastic peak up to the invariant mass of the final-state hadronic system W~2.7 GeV with four-momentum transfers Q2 from 0.4 to 6 (GeV/c)^2. These data are complementary to previous measurements of the proton structure function F2 and cover a similar two-dimensional region of Q2 and Bjorken variable x. Determination of the deuteron F2 over a large x interval including the quasi-elastic …
Measurement Of The N ->Delta (+)(1232) Transition At High-Momentum Transfer By Pi(0) Electroproduction, M Ungaro, P Stoler, I Aznauryan, Vd Burkert, K Joo, Lc Smith, G Adams, M Amarian, P Ambrozewicz, M Anghinolfi, G Asryan, G Audit, H Avakian, H Bagdasaryan, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, I Bedliski, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, A Cazes, S Chen, Pl Cole, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, E Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, J Goetz, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, I Hleiqawi, M Holtrop, K Hicks, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, Av Klimenko, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, K Livingston, C Marchand, N Markov, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, S Mehrabyan, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, J Mueller, Gs Mutchler, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, M Niroula, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, Sa Philips, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Av Skabelin, Es Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, Ii Strakovsky, S Strauch, M Taiuti, Dj Tedeschi, U Thoma, A Tkabladze, L Todor, S Tkachenko, C Tur, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, B Zhang, J Zhang, B Zhao
Measurement Of The N ->Delta (+)(1232) Transition At High-Momentum Transfer By Pi(0) Electroproduction, M Ungaro, P Stoler, I Aznauryan, Vd Burkert, K Joo, Lc Smith, G Adams, M Amarian, P Ambrozewicz, M Anghinolfi, G Asryan, G Audit, H Avakian, H Bagdasaryan, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, I Bedliski, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, A Cazes, S Chen, Pl Cole, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, E Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, J Goetz, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, I Hleiqawi, M Holtrop, K Hicks, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, Av Klimenko, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, K Livingston, C Marchand, N Markov, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, S Mehrabyan, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, J Mueller, Gs Mutchler, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, M Niroula, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, Sa Philips, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Av Skabelin, Es Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, Ii Strakovsky, S Strauch, M Taiuti, Dj Tedeschi, U Thoma, A Tkabladze, L Todor, S Tkachenko, C Tur, Mf Vineyard, Av Vlassov, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, B Zhang, J Zhang, B Zhao
Michael Williams
We report a new measurement of the exclusive electroproduction reaction gamma* p -> pi0 p to explore the evolution from soft non-perturbative physics to hard processes via the Q2 dependence of the magnetic (M1+), electric (E1+) and scalar (S1+) multipoles in the N to Delta transition. 9000 differential cross section data points cover W from threshold to 1.4 eV/c2, 4pi center-of-mass solid angle, and Q2 from 3 to 6 GeV2/c2, the highest yet achieved. It is found that the magnetic form factor G*M decreases with Q2 more steeply than the proton magnetic form factor, the ratio E1+/M1+ is small and …
Search For Theta(++) Pentaquarks In The Exclusive Reaction Gamma P -> K(+)K(-)P, V Kubarovsky, M Battaglieri, R De Vita, J Goett, L Guo, Gs Mutchler, P Stoler, Dp Weygand, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, V Batourine, I Bedlinskiy, M Bellis, N Benmouna, Bl Berman, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bueltmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, S Chen, E Clinton, Pl Cole, P Collins, P Coltharp, D Crabb, H Crannell, V Crede, Jp Cummings, R De Masi, D Dale, E De Sanctis, Pv Degtyarenko, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, G Fedotov, H Funsten, My Gabrielyan, L Gan, M Garcon, A Gasparian, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, O Glamazdin, Jt Goetz, E Golovach, A Gonenc, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, N Guler, V Gyurjyan, C Hadjidakis, K Hafidi, Rs Hakobyan, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, El Isupov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, Av Klimenko, M Kossov, Lh Kramer, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, K Livingston, H Lu, M Maccormick, N Markov, B Mckinnon, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mochalov, V Mokeev, L Morand, Sa Morrow, M Moteabbed, P Nadel-Turonski, I Nakagawa, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Mr Niroula, Ra Niyazov, M Nozar, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, S Pozdniakov, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Nv Shvedunov, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, Ii Strakovsky, S Strauch, M Taiuti, Dj Tedeschi, A Teymurazyan, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao
Search For Theta(++) Pentaquarks In The Exclusive Reaction Gamma P -> K(+)K(-)P, V Kubarovsky, M Battaglieri, R De Vita, J Goett, L Guo, Gs Mutchler, P Stoler, Dp Weygand, P Ambrozewicz, M Anghinolfi, G Asryan, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, V Batourine, I Bedlinskiy, M Bellis, N Benmouna, Bl Berman, As Biselli, S Bouchigny, S Boiarinov, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bueltmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, S Chen, E Clinton, Pl Cole, P Collins, P Coltharp, D Crabb, H Crannell, V Crede, Jp Cummings, R De Masi, D Dale, E De Sanctis, Pv Degtyarenko, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, J Donnelly, D Doughty, M Dugger, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, P Eugenio, G Fedotov, H Funsten, My Gabrielyan, L Gan, M Garcon, A Gasparian, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, O Glamazdin, Jt Goetz, E Golovach, A Gonenc, Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal, N Guler, V Gyurjyan, C Hadjidakis, K Hafidi, Rs Hakobyan, J Hardie, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, El Isupov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, W Kim, A Klein, Fj Klein, Av Klimenko, M Kossov, Lh Kramer, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, T Lee, J Li, K Livingston, H Lu, M Maccormick, N Markov, B Mckinnon, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mochalov, V Mokeev, L Morand, Sa Morrow, M Moteabbed, P Nadel-Turonski, I Nakagawa, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Mr Niroula, Ra Niyazov, M Nozar, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, S Pozdniakov, Jw Price, Y Prok, D Protopopescu, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, Yg Sharabian, Nv Shvedunov, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, Ii Strakovsky, S Strauch, M Taiuti, Dj Tedeschi, A Teymurazyan, U Thoma, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, Lb Weinstein, M Williams, E Wolin, Mh Wood, A Yegneswaran, L Zana, J Zhang, B Zhao
Michael Williams
The exclusive reaction gamma p ->(K) over bar (0)K(+)n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Theta(+)(1540)-> nK(+). The decay to nK(+) requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70 pb(-1). No evidence for the Theta(+) pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK(+) mass. The 95% C.L. upper limit on the total …
Differential Cross Sections For Gamma Plus P -> K++ Y For Lambda And Sigma(0) Hyperons, R Bradford, Ra Schumacher, Jwc Mcnabb, L Todor, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, N Bianchi, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, S Chen, Pl Cole, A Coleman, P Coltharp, P Corvisiero, D Crabb, H Crannell, Jp Cummings, R Devita, Ed Sanctis, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, Ks Dhuga, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, A Gonenc, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, Acs Lima, K Livingston, K Lukashin, Jj Manak, C Marchand, S Mcaleer, B Mckinnon, Ba Mecking, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, Sa Morrow, V Muccifora, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, Sa Philips, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, I Popa, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Bp Quinn, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Vs Serov, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, Lc Smith, Di Sober, M Spraker, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, S Tkachenko, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, H Weller, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang, B Zhao
Differential Cross Sections For Gamma Plus P -> K++ Y For Lambda And Sigma(0) Hyperons, R Bradford, Ra Schumacher, Jwc Mcnabb, L Todor, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, H Avakian, H Bagdasaryan, N Baillie, Jp Ball, Na Baltzell, S Barrow, V Batourine, M Battaglieri, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, N Bianchi, As Biselli, Be Bonner, S Bouchigny, S Boiarinov, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, S Chen, Pl Cole, A Coleman, P Coltharp, P Corvisiero, D Crabb, H Crannell, Jp Cummings, R Devita, Ed Sanctis, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, Ks Dhuga, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, E Golovatch, A Gonenc, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, M Huertas, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, Lh Kramer, V Kubarovsky, J Kuhn, Se Kuhn, Sv Kuleshov, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, Acs Lima, K Livingston, K Lukashin, Jj Manak, C Marchand, S Mcaleer, B Mckinnon, Ba Mecking, Md Mestayer, Ca Meyer, T Mibe, K Mikhailov, R Minehart, M Mirazita, R Miskimen, V Mokeev, Sa Morrow, V Muccifora, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, C Paterson, Sa Philips, J Pierce, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, I Popa, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Bp Quinn, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Vs Serov, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, Lc Smith, Di Sober, M Spraker, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, S Tkachenko, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, H Weller, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang, B Zhao
Michael Williams
High-statistics cross sections for the reactions γ+p→K++Λ and γ+p→K++Σ0 have been measured using CLAS at Jefferson Lab for center-of-mass energies W between 1.6 and 2.53 GeV, and for -0.85
A Continuous-Time Model Of Topic Co-Occurrence Trends, Wei Li, Xuerui Wang, Andrew Mccallum
A Continuous-Time Model Of Topic Co-Occurrence Trends, Wei Li, Xuerui Wang, Andrew Mccallum
Andrew McCallum
Recent work in statistical topic models has investigated richer structures to capture either temporal or inter-topic correlations. This paper introduces a topic model that combines the advantages of two recently proposed models: (1) The Pachinko Allocation model (PAM), which captures arbitrary topic correlations with a directed acyclic graph (DAG), and (2) the Topics over Time model (TOT), which captures time-localized shifts in topic prevalence with a continuous distribution over timestamps. Our model can thus capture not only temporal patterns in individual topics, but also the temporal patterns in their co-occurrences. We present results on a research paper corpus, showing interesting …
Pachinko Allocation: Dag-Structured Mixture Models Of Topic Correlations, Wei Li, Andrew Mccallum
Pachinko Allocation: Dag-Structured Mixture Models Of Topic Correlations, Wei Li, Andrew Mccallum
Andrew McCallum
Latent Dirichlet allocation (LDA) and other related topic models are increasingly popular tools for summarization and manifold discovery in discrete data. However, LDA does not capture correlations between topics. In this paper, we introduce the pachinko allocation model (PAM), which captures arbitrary, nested, and possibly sparse correlations between topics using a directed acyclic graph (DAG). The leaves of the DAG represent individual words in the vocabulary, while each interior node represents a correlation among its children, which may be words or other interior nodes (topics). PAM provides a flexible alternative to recent work by Blei and Lafferty (2006), which captures …
Combining Generative And Discriminative Methods For Pixel Classification With Multi-Conditional Learning, B. Michael Kelm, Chris Pal, Andrew Mccallum
Combining Generative And Discriminative Methods For Pixel Classification With Multi-Conditional Learning, B. Michael Kelm, Chris Pal, Andrew Mccallum
Andrew McCallum
It is possible to broadly characterize two approaches to probabilistic modeling in terms of generative and discriminative methods. Provided with sufficient training data the discriminative approach is expected to yield superior accuracy as compared to the analogous generative model since no modeling power is expended on the marginal distribution of the features. Conversely, if the model is accurate the generative approach can perform better with less data. In general it is less vulnerable to overfitting and allows one to more easily specify meaningful priors on the model parameters. We investigate multi-conditional learning--a method combining the merits of both approaches. Through …
Tractable Learning And Inference With High-Order Representations, Aron Culotta, Andrew Mccallum
Tractable Learning And Inference With High-Order Representations, Aron Culotta, Andrew Mccallum
Andrew McCallum
Representing high-order interactions in data often results in large models with an intractable number of hidden variables. In these models, inference and learning must operate without instantiating the entire set of variables. This paper presents a Metropolis-Hastings sampling approach to address this issue, and proposes new methods to discriminatively estimate the proposal and target distribution of the sampler using a ranking function over configurations. We demonstrate our approach on the task of paper and author deduplication, showing that our method enables complex, advantageous representations of the data while maintaining tractable learning and inference procedures.
Group And Topic Discovery From Relations And Their Attributes, Xuerui Wang, Natasha Mohanty, Andrew Mccallum
Group And Topic Discovery From Relations And Their Attributes, Xuerui Wang, Natasha Mohanty, Andrew Mccallum
Andrew McCallum
We present a probabilistic generative model of entity relationships and their attributes that simultaneously discovers groups among the entities and topics among the corresponding textual attributes. Block-models of relationship data have been studied in social network analysis for some time. Here we simultaneously cluster in several modalities at once, incorporating the attributes (here, words) associated with certain relationships. Significantly, joint inference allows the discovery of topics to be guided by the emerging groups, and vice-versa. We present experimental results on two large data sets: sixteen years of bills put before the U.S. Senate, comprising their corresponding text and voting records, …
Learning Field Compatibilities To Extract Database Records From Unstructured Text, Michael Wick, Aron Culotta, Andrew Mccallum
Learning Field Compatibilities To Extract Database Records From Unstructured Text, Michael Wick, Aron Culotta, Andrew Mccallum
Andrew McCallum
Named-entity recognition systems extract entities in text by type, such as people, organizations, and locations from unstructured text. Rather than extract these fields in isolation, in this paper we present a record extraction system that clusters fields together into records (i.e. database tuples). We construct a probabilistic model of the compatibility of field values, then employ graph partitioning algorithms to partition fields into cohesive records. We also investigate compatibility functions over sets of fields, rather than simply pairs of fields, to examine how higher representational power can impact performance. We apply our techniques to the task of extracting contact records …
Cc Prediction With Graphical Models, Chris Pal, Andrew Mccallum
Cc Prediction With Graphical Models, Chris Pal, Andrew Mccallum
Andrew McCallum
We address the problem of suggesting who to add as an additional recipient (i.e. cc, or carbon copy) for an email under composition. We address the problem using graphical models for words in the body and subject line of the email as well as the recipients given so far on the email. The problem of cc prediction is closely related to the problem of expert finding in an organization. We show that graphical models present a variety of solutions to these problems. We present results using naively structured models and introduce a powerful new modeling tool: plated factor graphs.
Multi-Conditional Learning For Joint Probability Models With Latent Variables, Chris Pal, Xuerui Wang, Michael Kelm, Andrew Mccallum
Multi-Conditional Learning For Joint Probability Models With Latent Variables, Chris Pal, Xuerui Wang, Michael Kelm, Andrew Mccallum
Andrew McCallum
We introduce Multi-Conditional Learning, a framework for optimizing graphical models based not on joint likelihood, or on conditional likelihood, but based on a product of several marginal conditional likelihoods each relying on common sets of parameters from an underlying joint model and predicting different subsets of variables conditioned on other subsets. When applied to undirected models with latent variables, such as the Harmonium, this approach can result in powerful, structured latent variable representations that combine some of the advantages of conditional random fields with the unsupervised clustering ability of popular topic models, such as latent Dirichlet allocation and its successors. …
On Discriminative And Semi-Supervised Dimensionality Reduction, Chris Pal, Michael Kelm, Xuerui Wang, Greg Druck, Andrew Mccallum
On Discriminative And Semi-Supervised Dimensionality Reduction, Chris Pal, Michael Kelm, Xuerui Wang, Greg Druck, Andrew Mccallum
Andrew McCallum
We are interested in using the goal of making predictions to influence dimensionality reduction procedures. A number of new methods are emerging aimed at combining attributes of generative and discriminative approaches to data modeling. New approaches to semi-supervised learning have also been emerging. We present and apply some new methods to non-linear and richly structured problems comparing and contrasting models designed for computer vision with those designed for text processing and discuss essential properties that need to be preserved when reducing dimensionality.
Integrating Probabilistic Extraction Models And Data Mining To Discover Relations And Patterns In Text, Aron Culotta, Andrew Mccallum, Jonathon Betz
Integrating Probabilistic Extraction Models And Data Mining To Discover Relations And Patterns In Text, Aron Culotta, Andrew Mccallum, Jonathon Betz
Andrew McCallum
In order for relation extraction systems to obtain human-level performance, they must be able to incorporate relational patterns inherent in the data (for example, that one's sister is likely one's mother's daughter, or that children are likely to attend the same college as their parents). Hand-coding such knowledge can be time-consuming and inadequate. Additionally, there may exist many interesting, unknown relational patterns that both improve extraction performance and provide insight into text. We describe a probabilistic extraction model that provides mutual benefits to both ``top-down'' relational pattern discovery and ``bottom-up'' relation extraction.
Joint Group And Topic Discovery From Relations And Text, Andrew Mccallum, Xuerui Wang, Natasha Mohanty
Joint Group And Topic Discovery From Relations And Text, Andrew Mccallum, Xuerui Wang, Natasha Mohanty
Andrew McCallum
We present a probabilistic generative model of entity relationships and textual attributes; the model simultaneously discovers groups among the entities and topics among the corresponding text. Block models of relationship data have been studied in social network analysis for some time, however here we cluster in multiple modalities at once. Significantly, joint inference allows the discovery of groups to be guided by the emerging topics, and vice-versa. We present experimental results on two large data sets: sixteen years of bills put before the U.S. Senate, comprising their corresponding text and voting records, and 43 years of similar data from the …