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Multidecadal North Atlantic Climate Variability And Its Effect On North American Salmon Abundance, Alan Condron, Robert M. Deconto, Raymond S. Bradley, Frances Juanes
Multidecadal North Atlantic Climate Variability And Its Effect On North American Salmon Abundance, Alan Condron, Robert M. Deconto, Raymond S. Bradley, Frances Juanes
Robert M DeConto
Climate variability is now known to play a key role in the abundance of marine fisheries, and must be accounted for to implement sustainable management strategies. We show that North American Atlantic salmon abundance has fluctuated in parallel with the Atlantic Multidecadal Oscillation (AMO); a basin-wide, low frequency climate mode producing cold-warm-cold sea surface temperatures over the last century. During the AMO warm (cool) phase salmon abundance is lower (higher). Changes in sea surface temperature associated with the AMO are most pronounced in the winter season near the Grand Banks of Newfoundland, a known overwintering area for salmon and an …
The 21st Annual International Conference On Soils, Sediments And Water
The 21st Annual International Conference On Soils, Sediments And Water
Annual Conference on Soils, Sediments and Water: Abstracts
Conference at a Glance Monday, October 17, 2005 Workshops (Workshops #1 and #2: 10:00am - 5:00pm; Workshop #3: 1:00 - 5:00pm; Workshop #4: 1:00 - 3:00pm, Workshop #5: 2:00 - 5:00pm) 1) Theory and Use of Field Portable X-ray Fluorescence for Soil Analysis 2) In-Situ Chemical Oxidation Workshop 3) The Role of Anaerobic Biodegradation Processes in Passive and Enhanced Monitored Natural Attenuation Programs 4) Application of Classic and Emerging Techniques in Environmental Forensics 5) Environmental Fate of Hydrocarbons in Soils and Groundwater Tuesday, October 18, 2005 Platform Presentations 8:30am – Noon Session 1: Environmental Biotechnology Session 2: Ecological Restoration and …
Proxy-Based Northern Hemisphere Surface Temperature Reconstructions: Sensitivity To Method, Predictor Network, Target Season, And Target Domain, S. Rutherford, M. E. Mann, T. J. Osborne, Raymond S. Bradley, K. R. Briffa, M. K. Hughes, P. D. Jones
Proxy-Based Northern Hemisphere Surface Temperature Reconstructions: Sensitivity To Method, Predictor Network, Target Season, And Target Domain, S. Rutherford, M. E. Mann, T. J. Osborne, Raymond S. Bradley, K. R. Briffa, M. K. Hughes, P. D. Jones
Raymond S Bradley
Results are presented from a set of experiments designed to investigate factors that may influence proxy-based reconstructions of large-scale temperature patterns in past centuries. The factors investigated include 1) the method used to assimilate proxy data into a climate reconstruction, 2) the proxy data network used, 3) the target season, and 4) the spatial domain of the reconstruction. Estimates of hemispheric-mean temperature are formed through spatial averaging of reconstructed temperature patterns that are based on either the local calibration of proxy and instrumental data or a more elaborate multivariate climate field reconstruction approach. The experiments compare results based on the …
Phosphorus Dynamics In Cranberry Systems; 310 Report To Ma Dep, Carolyn J. Demoranville, Brian L. Howes
Phosphorus Dynamics In Cranberry Systems; 310 Report To Ma Dep, Carolyn J. Demoranville, Brian L. Howes
Cranberry Station Research Reports and Surveys
No abstract provided.
Stable Isotopes In East African Precipitation Record Indian Ocean Zonal Mode, M. Vuille, M. Werner, Raymond S. Bradley, R. Y. Chan, F. Keimig
Stable Isotopes In East African Precipitation Record Indian Ocean Zonal Mode, M. Vuille, M. Werner, Raymond S. Bradley, R. Y. Chan, F. Keimig
Raymond S Bradley
Observational stable isotope data and model simulations show that the δ18O composition of precipitation in East Africa is closely related to the coupled ocean-atmosphere system over the Indian Ocean. During the rainy seasons δ18O is a very sensitive recorder of the Indian Ocean Zonal Mode (IOZM). The link between δ18O and the IOZM is established through adjustments in the large-scale overturning circulation over the Indian Ocean and associated changes in convective activity and precipitation over East Africa. The IOZM is recorded as significant departures in δ18O not only over East Africa but as a dipole mode with opposite sign to …
Multidecadal North Atlantic Climate Variability And Its Effect On North American Salmon Abundance, A. Condron, R. Deconto, Raymond S. Bradley, F. Juanes
Multidecadal North Atlantic Climate Variability And Its Effect On North American Salmon Abundance, A. Condron, R. Deconto, Raymond S. Bradley, F. Juanes
Raymond S Bradley
Climate variability is now known to play a key role in the abundance of marine fisheries, and must be accounted for to implement sustainable management strategies. We show that North American Atlantic salmon abundance has fluctuated in parallel with the Atlantic Multidecadal Oscillation (AMO); a basin-wide, low frequency climate mode producing cold-warm-cold sea surface temperatures over the last century. During the AMO warm (cool) phase salmon abundance is lower (higher). Changes in sea surface temperature associated with the AMO are most pronounced in the winter season near the Grand Banks of Newfoundland, a known overwintering area for salmon and an …
Hans Ris (1914-2004). Genophore, Chromosomes And The Bacterial Origin Of Chloroplasts, Lynn Margulis
Hans Ris (1914-2004). Genophore, Chromosomes And The Bacterial Origin Of Chloroplasts, Lynn Margulis
Lynn Margulis (1938 - 2011)
No abstract provided.
Exclusive Photoproduction Of The Cascade (Xi) Hyperons, Jw Price, Bmk Nefkens, Jl Ducote, Jt Goetz, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Audit, T Auger, H Avakian, H Bagdasaryan, Jp Ball, S Barrow, M Battaglieri, K Beard, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, N Bianchi, As Biselli, S Boiarinov, S Bouchigny, R Bradford, D Branford, Wj Briscoe, Wk Brooks, Vd Burkert, C Butuceanu, Jr Calarco, Ds Carman, B Carnahan, C Cetina, S Chen, Pl Cole, A Coleman, J Connelly, D Cords, P Corvisiero, D Crabb, H Crannell, Jp Cummings, Ed Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, Kv Dharmawardane, C Djalali, Ge Dodge, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, M Eckhause, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, L Farhi, R Fatemi, Rj Feuerbach, Ta Forest, V Frolov, H Funsten, Sj Gaff, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Cio Gordon, R Gothe, K Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, D Hancock, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, Ce Hyde-Wright, Y Ilieva, D Ireland, Mm Ito, D Jenkins, K Joo, Hg Juengst, Jh Kelley, J Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, Lh Kramer, Y Kuang, V Kubarovsky, Se Kuhn, J Kuhn, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, J Li, K Livingston, K Lukashin, W Major, Jj Manak, C Marchand, S Mcaleer, Jwc Mcnabb, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, M Mirazita, R Miskimen, L Morand, Sa Morrow, V Muccifora, J Mueller, Gs Mutchler, J Napolitano, R Nasseripour, So Nelson, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Jt O'Brien, Gv O'Rielly, M Osipenko, A Ostrovidov, K Park, E Pasyuk, G Peterson, Sa Philips, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, 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, K Sabourov, C Salgado, Jp Santoro, M Sanzone-Arenhovel, V Sapunenko, Ra Schumacher, Vs Serov, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, T Smith, Lc Smith, Di Sober, M Spraker, A Stavinsky, S Stepanyan, B Stokes, P Stoler, Ii Strakovsky, S Strauch, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, H Weller, Dp Weygand, M Williams, M Witkowski, E Wolin, Mh Wood, A Yegneswaran, J Yun
Exclusive Photoproduction Of The Cascade (Xi) Hyperons, Jw Price, Bmk Nefkens, Jl Ducote, Jt Goetz, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Audit, T Auger, H Avakian, H Bagdasaryan, Jp Ball, S Barrow, M Battaglieri, K Beard, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, N Bianchi, As Biselli, S Boiarinov, S Bouchigny, R Bradford, D Branford, Wj Briscoe, Wk Brooks, Vd Burkert, C Butuceanu, Jr Calarco, Ds Carman, B Carnahan, C Cetina, S Chen, Pl Cole, A Coleman, J Connelly, D Cords, P Corvisiero, D Crabb, H Crannell, Jp Cummings, Ed Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, Kv Dharmawardane, C Djalali, Ge Dodge, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, M Eckhause, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, L Farhi, R Fatemi, Rj Feuerbach, Ta Forest, V Frolov, H Funsten, Sj Gaff, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Cio Gordon, R Gothe, K Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, D Hancock, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, Ce Hyde-Wright, Y Ilieva, D Ireland, Mm Ito, D Jenkins, K Joo, Hg Juengst, Jh Kelley, J Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, Lh Kramer, Y Kuang, V Kubarovsky, Se Kuhn, J Kuhn, J Lachniet, Jm Laget, J Langheinrich, D Lawrence, J Li, K Livingston, K Lukashin, W Major, Jj Manak, C Marchand, S Mcaleer, Jwc Mcnabb, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, M Mirazita, R Miskimen, L Morand, Sa Morrow, V Muccifora, J Mueller, Gs Mutchler, J Napolitano, R Nasseripour, So Nelson, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Jt O'Brien, Gv O'Rielly, M Osipenko, A Ostrovidov, K Park, E Pasyuk, G Peterson, Sa Philips, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, 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, K Sabourov, C Salgado, Jp Santoro, M Sanzone-Arenhovel, V Sapunenko, Ra Schumacher, Vs Serov, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, T Smith, Lc Smith, Di Sober, M Spraker, A Stavinsky, S Stepanyan, B Stokes, P Stoler, Ii Strakovsky, S Strauch, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, H Weller, Dp Weygand, M Williams, M Witkowski, E Wolin, Mh Wood, A Yegneswaran, J Yun
Michael Williams
We report on the first measurement of exclusive Xi-(1321) hyperon photoproduction in gamma p --> K+ K+ Xi- for 3.2 < E(gamma) < 3.9 GeV. The final state is identified by the missing mass in p(gamma,K+ K+)X measured with the CLAS detector at Jefferson Laboratory. We have detected a significant number of the ground-state Xi-(1321)1/2+, and have estimated the total cross section for its production. We have also observed the first excited state Xi-(1530)3/2+. Photoproduction provides a copious source of Xi's. We discuss the possibilities of a search for the recently proposed Xi5-- and Xi5+ pentaquarks.
Radiative Decays Of The Sigma(0)(1385) And Lambda(1520) Hyperons, S Taylor, Gs Mutchler, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, H Avakian, H Bagdasaryan, Jp Ball, S Barrow, V Batourine, M Battaglieri, K Beard, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, N Bianchi, As Biselli, S Boiarinov, Be Bonner, S Bouchigny, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Ds Carman, B Carnahan, S Chen, Pl Cole, D Cords, P Corvisiero, D Crabb, H Crannell, Jp Cummings, E De Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Feldman, Rg Fersch, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, 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, Mm Ito, D Jenkins, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, V Koubarovski, Lh Kramer, Se Kuhn, J 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, Jwc Mcnabb, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, V Muccifora, J Mueller, 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, Sa Philips, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Bs 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, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, Lc Smith, Di Sober, M Spraker, A Stavinsky, S Stepanyan, Ss Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, R Suleiman, M Taiuti, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, H Weller, Dp Weygand, Cs Whisnant, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana
Radiative Decays Of The Sigma(0)(1385) And Lambda(1520) Hyperons, S Taylor, Gs Mutchler, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, H Avakian, H Bagdasaryan, Jp Ball, S Barrow, V Batourine, M Battaglieri, K Beard, M Bektasoglu, M Bellis, N Benmouna, Bl Berman, N Bianchi, As Biselli, S Boiarinov, Be Bonner, S Bouchigny, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bultmann, Vd Burkert, C Butuceanu, Jr Calarco, Ds Carman, B Carnahan, S Chen, Pl Cole, D Cords, P Corvisiero, D Crabb, H Crannell, Jp Cummings, E De Sanctis, R Devita, Pv Degtyarenko, H Denizli, L Dennis, A Deur, Kv Dharmawardane, C Djalali, Ge Dodge, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, H Egiyan, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, G Feldman, Rg Fersch, Rj Feuerbach, Ta Forest, H Funsten, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, 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, Mm Ito, D Jenkins, K Joo, Hg Juengst, Jd Kellie, M Khandaker, Ky Kim, K Kim, W Kim, A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, V Koubarovski, Lh Kramer, Se Kuhn, J 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, Jwc Mcnabb, Ba Mecking, Jj Melone, Md Mestayer, Ca Meyer, K Mikhailov, M Mirazita, R Miskimen, V Mokeev, L Morand, Sa Morrow, V Muccifora, J Mueller, 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, Sa Philips, N Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Bs 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, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, Lc Smith, Di Sober, M Spraker, A Stavinsky, S Stepanyan, Ss Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, R Suleiman, M Taiuti, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, H Weller, Dp Weygand, Cs Whisnant, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana
Michael Williams
The electromagnetic decays of the Sig0(1385) and Lambda(1520) hyperons were studied in photon-induced reactions gamma p -> K+ Lambda(1116)gamma in the CLAS detector at the Thomas Jefferson National Accelerator Facility. We report the first observation of the radiative decay of the Sig0(1385) and a measurement of the Lambda(1520) radiative decay width. For the Sig0(1385) -> Lambda(1116)gamma transition, we measured a partial width of 479+/-120(stat)+81-100(sys) keV, larger than all of the existing model predictions. For the Lambda(1520) -> Lambda(1116)gamma transition, we obtained a partial width of 167+/-43(stat)+26-12(sys) keV.
Measurement Of The Polarized Structure Function Sigma(Lt ') For Pion Electroproduction In The Roper-Resonance Region, K Joo, Lc Smith, Ig Aznauryan, Vd Burkert, H Egiyan, R Minehart, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, T Auger, 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, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bueltmann, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, C Cetina, S Chen, Pl Cole, A Coleman, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, E De Sanctis, R Devita, Pv Degtyarenko, L Dennis, A Deur, Kv Dharmawardane, Ks Dhuga, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, L Farhi, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, Ta Forest, V Frolov, H Funsten, Sj Gaff, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, P Girard, Fx Girod, Jt Goetz, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, Hg Juengst, Jh Kelley, 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, K Livingston, K Lukashin, Jj Manak, C Marchand, Lc Maximon, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, Md Mestayer, Ca Meyer, K Mikhailov, M Mirazita, R Miskimen, V Mokeev, Sa Morrow, V Muccifora, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, So Nelson, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, G Peterson, 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, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, K Sabourov, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, Di Sober, M Spraker, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, 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
Measurement Of The Polarized Structure Function Sigma(Lt ') For Pion Electroproduction In The Roper-Resonance Region, K Joo, Lc Smith, Ig Aznauryan, Vd Burkert, H Egiyan, R Minehart, G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, T Auger, 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, R Bradford, D Branford, Wj Briscoe, Wk Brooks, S Bueltmann, C Butuceanu, Jr Calarco, Sl Careccia, Ds Carman, B Carnahan, C Cetina, S Chen, Pl Cole, A Coleman, P Coltharp, D Cords, P Corvisiero, D Crabb, Jp Cummings, E De Sanctis, R Devita, Pv Degtyarenko, L Dennis, A Deur, Kv Dharmawardane, Ks Dhuga, C Djalali, Ge Dodge, J Donnelly, D Doughty, P Dragovitsch, M Dugger, S Dytman, Op Dzyubak, Ks Egiyan, L Elouadrhiri, A Empl, P Eugenio, L Farhi, R Fatemi, G Fedotov, G Feldman, Rj Feuerbach, Ta Forest, V Frolov, H Funsten, Sj Gaff, M Garcon, G Gavalian, Gp Gilfoyle, Kl Giovanetti, P Girard, Fx Girod, Jt Goetz, Rw Gothe, Ka Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, Rs Hakobyan, J Hardie, D Heddle, Fw Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, Ce Hyde-Wright, Y Ilieva, Dg Ireland, Bs Ishkhanov, Mm Ito, D Jenkins, Hs Jo, Hg Juengst, Jh Kelley, 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, K Livingston, K Lukashin, Jj Manak, C Marchand, Lc Maximon, S Mcaleer, B Mckinnon, Jwc Mcnabb, Ba Mecking, Md Mestayer, Ca Meyer, K Mikhailov, M Mirazita, R Miskimen, V Mokeev, Sa Morrow, V Muccifora, J Mueller, Gs Mutchler, P Nadel-Turonski, J Napolitano, R Nasseripour, So Nelson, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar, Gv O'Rielly, M Osipenko, Ai Ostrovidov, K Park, E Pasyuk, G Peterson, 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, G Ricco, M Ripani, Bg Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, K Sabourov, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, A Shafi, Yg Sharabian, J Shaw, S Simionatto, Av Skabelin, Es Smith, Di Sober, M Spraker, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, S Strauch, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, 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
Michael Williams
The polarized longitudinal-transverse structure function σLT' measures the interference between real and imaginary amplitudes in pion electroproduction and can be used to probe the coupling between resonant and nonresonant processes. We report new measurements of σLT' in the N(1440)1/2+ (Roper) resonance region at Q2=0.40 and 0.65GeV2 for both the π0p and π+n channels. The experiment was performed at Jefferson Lab with the CEBAF Large Acceptance Spectrometer (CLAS) using longitudinally polarized electrons at a beam energy of 1.515 GeV. Complete angular distributions were obtained and are compared to recent phenomenological models. The σLT'(π+n) channel shows a large sensitivity to the Roper-resonance …
Beam-Helicity Asymmetries In Double-Charged-Pion Photoproduction On The Proton, S Strauch, Bl Berman, 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, M Battaglieri, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, C Bennhold, As Biselli, S Boiarinov, S Bouchigny, R Bradford, 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, D Cords, P Corvisiero, D Crabb, H Crannell, Jp Cummings, Pv Degtyarenko, H Denizli, L Dennis, E De Sanctis, A Deur, R Devita, 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, A Fix, Ta Forest, H Funsten, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, Rw Gothe, Ka Griffioen, M Guidal, 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, Acs Lima, K Livingston, K Lukashin, Jj Manak, C Marchand, 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, 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, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, W Roberts, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, A Shafi, Yg Sharabian, J Shaw, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang
Beam-Helicity Asymmetries In Double-Charged-Pion Photoproduction On The Proton, S Strauch, Bl Berman, 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, M Battaglieri, K Beard, I Bedlinskiy, M Bektasoglu, M Bellis, N Benmouna, C Bennhold, As Biselli, S Boiarinov, S Bouchigny, R Bradford, 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, D Cords, P Corvisiero, D Crabb, H Crannell, Jp Cummings, Pv Degtyarenko, H Denizli, L Dennis, E De Sanctis, A Deur, R Devita, 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, A Fix, Ta Forest, H Funsten, G Gavalian, Gp Gilfoyle, Kl Giovanetti, Fx Girod, Jt Goetz, Rw Gothe, Ka Griffioen, M Guidal, 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, Acs Lima, K Livingston, K Lukashin, Jj Manak, C Marchand, 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, 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, S Pozdniakov, Bm Preedom, Jw Price, Y Prok, D Protopopescu, Lm Qin, Ba Raue, G Riccardi, G Ricco, M Ripani, Bg Ritchie, W Roberts, F Ronchetti, G Rosner, P Rossi, D Rowntree, Pd Rubin, F Sabatie, C Salgado, Jp Santoro, V Sapunenko, Ra Schumacher, Vs Serov, A Shafi, Yg Sharabian, J Shaw, Av Skabelin, Es Smith, Lc Smith, Di Sober, A Stavinsky, Ss Stepanyan, S Stepanyan, Be Stokes, P Stoler, Ii Strakovsky, R Suleiman, M Taiuti, S Taylor, Dj Tedeschi, U Thoma, R Thompson, A Tkabladze, S Tkachenko, L Todor, C Tur, M Ungaro, Mf Vineyard, Av Vlassov, K Wang, Lb Weinstein, Dp Weygand, M Williams, E Wolin, Mh Wood, A Yegneswaran, J Yun, L Zana, J Zhang
Michael Williams
Beam-helicity asymmetries for the two-pion-photoproduction reaction γ⃗p→pπ+π- have been studied for the first time in the resonance region for center-of-mass energies between 1.35 and 2.30 GeV. The experiment was performed at Jefferson Lab with the CEBAF Large Acceptance Spectrometer using circularly polarized tagged photons incident on an unpolarized hydrogen target. Beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries exhibit strong sensitivity to the kinematics and dynamics of the reaction. The data are compared with the results of various phenomenological model calculations, and show that these models currently do not provide an adequate description for the …