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Measurements Of The Reactions [Formula Presented] And [Formula Presented], C. Athanassopoulos, L. B. Auerbach, R. L. Burman, D. O. Caldwell, E. Church, I. Cohen, B. D. Dieterle, J. B. Donahue, A. M. Eisner, A. Fazely, F. J. Federspiel, G. T. Garvey, M. Gray, R. M. Gunasingha, R. Imlay, K. Johnston, H. J. Kim, W. C. Louis, R. Majkic, K. Mcilhany, W. Metcalf, G. B. Mills, R. A. Reeder, V. Sandberg, D. Smith, I. Stancu, W. Strossman, R. Tayloe, G. J. Vandalen, W. Vernon, N. Wadia, J. Waltz, Y. X. Wang Jan 1997

Measurements Of The Reactions [Formula Presented] And [Formula Presented], C. Athanassopoulos, L. B. Auerbach, R. L. Burman, D. O. Caldwell, E. Church, I. Cohen, B. D. Dieterle, J. B. Donahue, A. M. Eisner, A. Fazely, F. J. Federspiel, G. T. Garvey, M. Gray, R. M. Gunasingha, R. Imlay, K. Johnston, H. J. Kim, W. C. Louis, R. Majkic, K. Mcilhany, W. Metcalf, G. B. Mills, R. A. Reeder, V. Sandberg, D. Smith, I. Stancu, W. Strossman, R. Tayloe, G. J. Vandalen, W. Vernon, N. Wadia, J. Waltz, Y. X. Wang

Faculty Publications

Charged current scattering of [Formula Presented] on [Formula Presented] has been studied using a [Formula Presented] decay-in-flight [Formula Presented] beam at the Los Alamos Meson Physics Facility. A sample of 56.8 [Formula Presented] events satisfying criteria for the exclusive reaction [Formula Presented] was obtained using a large liquid scintillator neutrino detector. The observed flux-averaged cross section [Formula Presented] agrees well with reliable theoretical expectations. A measurement was also obtained for the inclusive cross section to all accessible [Formula Presented] states [Formula Presented] This flux-averaged cross section is [Formula Presented] which is approximately half of that given by a recent continuum …

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The Zeus Leading Proton Spectrometer And Its Use In The Measurement Of Elastic Ρ0 Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. R. Okrasiński, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, M. C.K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti Jan 1997

The Zeus Leading Proton Spectrometer And Its Use In The Measurement Of Elastic Ρ0 Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. R. Okrasiński, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, M. C.K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti

Faculty Publications

The differential cross section dσ/dt for elastic ρ0 photoproduction, γp → ρ0ρ (ρ0 → π+π-), has been measured in ep interactions at HERA. The squared four-momentum exchanged at the proton vertex, t, has been determined directly by measuring the momentum of the scattered proton using the ZEUS Leading Proton Spectrometer (LPS), a large scale system of silicon micro-strip detectors operating close to the HERA proton beam. The LPS allows the measurement of the momentum of high energy protons scattered at small angles with accuracies of 0.4% for the longitudinal momentum and 5 MeV for the transverse momentum. Photoproduction of ρ0 …

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Search For Lepton Flavor Violation In Ep Collisions At 300 Gev Center Of Mass Energy, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. R. Okrasiński, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, M. C.K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam Jan 1997

Search For Lepton Flavor Violation In Ep Collisions At 300 Gev Center Of Mass Energy, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. R. Okrasiński, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, M. C.K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam

Faculty Publications

Using the ZEUS detector at the HERA electron-proton collider, we have searched for lepton flavor violation in ep collisions at a center-of-mass energy (√s) of 300 GeV. Events of the type e + p → ℓ + X with a final-state lepton of high transverse momentum, ℓ = μ or τ, were sought. No evidence was found for lepton flavor violation in the combined 1993 and 1994 data samples, for which the integrated luminosities were 0.84 pb-1 for e-p collisions and 2.94 pb-1 for e+p collisions. Limits on coupling vs. mass are provided for leptoquarks and R-parity violating squarks. For …

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Techniques For Detecting Gravitational Waves With A Spherical Antenna, Stephen M. Merkowitz, Warren W. Johnson Jan 1997

Techniques For Detecting Gravitational Waves With A Spherical Antenna, Stephen M. Merkowitz, Warren W. Johnson

Faculty Publications

We report the results of a theoretical and experimental study of a spherical gravitational wave antenna. We develop a number of techniques to deconvolve the data from a set of resonant transducers attached to the surface of a sphere to monitor the sphere’s five quadrupole modes. We show that by observing these modes, one can measure the five tensorial components of a gravitational wave. The inverse problem can then be solved and the direction of a gravitational wave can be determined. Asymmetries such as the nondegeneracy of the quadrupole modes and mistuning of the transducers are included in the model …

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Generation Of Attosecond Pulses In Macroscopic Media, Philippe Antoine, Dejan B. Milošević, Anne L’Huillier, Mette B. Gaarde, Pascal Salières, Maciej Lewenstein Jan 1997

Generation Of Attosecond Pulses In Macroscopic Media, Philippe Antoine, Dejan B. Milošević, Anne L’Huillier, Mette B. Gaarde, Pascal Salières, Maciej Lewenstein

Faculty Publications

We describe theoretically the generation of ultrashort (subfemtosecond) pulses using high-order harmonics of a laser pulse with a time-dependent degree of ellipticity. The single-atom response is calculated by using a low-frequency strong-field approximation. Propagation effects are taken into account using a method going beyond the slowly varying envelope approximation. Propagation modifies significantly the results obtained in the single-atom response and, in certain conditions, makes the generation of one attosecond pulse possible. We discuss prospects for the observation of these ultrashort pulses. © 1997 The American Physical Society.

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Information Capacity Of The Carbohydrate Code, Roger A. Laine Jan 1997

Information Capacity Of The Carbohydrate Code, Roger A. Laine

Faculty Publications

Capacity for information in biological molecules is traditionally thought to reside in the primary sequence of proteins and RNA, recorded in the DNA. With the exception of some RNA molecules, proteins, if not structural, carry their information in binding sites for substrates of reactions, or in binding sites for control molecules. Some proteins bind to complex carbohydrates in a carbohydrate-specific fashion, including enzymes, lectins and antibodies. These carbohydrates, assembled by sequential glycosyl transferases, also carry biological information, the other side of which is a binding protein that recognizes a specific sugar monosaccharides, sequence, anomerity, linkage, ring size, branching and substitution. …

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The Prevalence Of Hypertension In Seven Populations Of West African Origin, Richard Cooper, Charles Rotimi, Susan Ataman, Daniel Mcgee, Babatunde Osotimehin, Solomon Kadiri, Walinjom Muna, Samuel Kingue, Henry Fraser, Terrence Forrester, Franklyn Bennett, Rainford Wilks Jan 1997

The Prevalence Of Hypertension In Seven Populations Of West African Origin, Richard Cooper, Charles Rotimi, Susan Ataman, Daniel Mcgee, Babatunde Osotimehin, Solomon Kadiri, Walinjom Muna, Samuel Kingue, Henry Fraser, Terrence Forrester, Franklyn Bennett, Rainford Wilks

Faculty Publications

Objectives. This study was undertaken to describe the distribution of blood pressures, hypertension prevalence, and associated risk factors among seven populations of West African origin. Methods. The rates of hypertension in West Africa (Nigeria and Cameroon), the Caribbean (Jamaica, St. Lucia, Barbados), and the United States (metropolitan Chicago, Illinois) were compared on the basis of a highly standardized collaborative protocol. After researchers were given central training in survey methods, population-based samples of 800 to 2500 adults over the age of 25 were examined in seven sites, yielding a total sample of 10 014. Results. A consistent gradient of hypertension prevalence …

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Ab Initio Elasticity Of Three High-Pressure Polymorphs Of Silica, Bijaya B. Karki, Lars Stixrude, Jason Crain Jan 1997

Ab Initio Elasticity Of Three High-Pressure Polymorphs Of Silica, Bijaya B. Karki, Lars Stixrude, Jason Crain

Faculty Publications

Full elastic constant tensors of three high-pressure polymorphs of silica: stishovite, CaCl -type and columbite-type (α-PbO structure); are determined at lower mantle pressures from first-principles using the plane wave pseudopotential method within the local density approximation. The calculated zero pressure athermal elastic moduli are within a few percent of the experiments. We find that the elastic properties of silica are strongly pressure dependent. The shear wave velocity decreases rapidly (by 60 %) and the anisotropy increases rapidly (by a factor of five) between 40 and 47 GPa prior to the transition from stishovite to the CaCl structure at 47 GPa. …

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Three-Species Monomer-Monomer Model: A Mean-Field Analysis And Monte Carlo Study, Kevin E. Bassler, Dana A. Browne Jan 1997

Three-Species Monomer-Monomer Model: A Mean-Field Analysis And Monte Carlo Study, Kevin E. Bassler, Dana A. Browne

Faculty Publications

We study the phase diagram and critical behavior of a one-dimensional three-species monomer-monomer catalytic surface reaction model. Static Monte Carlo simulations are used to roughly map out the phase diagram consisting of a reactive steady state bordered by three equivalent unreactive phases where the surface is saturated with one monomer species. The transitions from the reactive phase are all continuous, while the transitions between poisoned phases are first order. Of particular interest are the bicritical points where the reactive phase simultaneously meets two poisoned phases. A mean-field cluster analysis fails to predict all of the qualitative features of the phase …

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Mean-Field Analysis And Monte Carlo Study Of An Interacting Two-Species Reaction Model, K. S. Brown, K. E. Bassler, D. A. Browne Jan 1997

Mean-Field Analysis And Monte Carlo Study Of An Interacting Two-Species Reaction Model, K. S. Brown, K. E. Bassler, D. A. Browne

Faculty Publications

We study the phase diagram and critical behavior of an interacting one-dimensional two-species monomer-monomer catalytic surface reaction model with a reactive phase as well as two equivalent adsorbing phases where one of the species saturates the system. The model depends on two parameters: the relative adsorption rates of the two species and a repulsive interaction between like neighbors. A mean-field analysis including correlations up to triplets of sites fails to reproduce the phase diagram found by Monte Carlo simulations. The three phases coexist at a bicritical point whose critical behavior is described by the even branching annihilating random-walk universality class. …

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Does The Jones Polynomial Detect Unknottedness?, Oliver T. Dasbach, Stefan Hougardy Jan 1997

Does The Jones Polynomial Detect Unknottedness?, Oliver T. Dasbach, Stefan Hougardy

Faculty Publications

There have been many attempts to settle the question whether there exist nontrivial knots with trivial Jonespolynomial. In this paper we show that such a knot must have crossing number at least 18. Furthermore we give the number of prime alternating knots and an upper bound for the number of prime knots up to 17 crossings. We also compute the number of different HOMFLY, Jonesand Alexander polynomials for knots up to 15 crossings. © A K Peters, Ltd.

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First On-Line Results For As And F Beams From Hribf Target/Ion Sources, H. K. Carter, J. Kormicki, D. W. Stracener, J. B. Breitenbach, J. C. Blackmon, M. S. Smith, D. W. Bardayan Jan 1997

First On-Line Results For As And F Beams From Hribf Target/Ion Sources, H. K. Carter, J. Kormicki, D. W. Stracener, J. B. Breitenbach, J. C. Blackmon, M. S. Smith, D. W. Bardayan

Faculty Publications

The first on-line tests of the ion sources to provide radioactive ion beams of 69,70As and 17,18F for the Holifield Radioactive Ion Beam Facility have been performed using the UNISOR facility at HRIBF. For 70As the measured efficiency is 0.8 ± 0.3% with a hold-up time of 3.6 ± 0.3 h as measured with 72As at a target temperature of 1270°C. For 17F the efficiency for Al17F is 0.0024 ± 0.0008% with a hold-up time of 16.4 ± 0.8 m as measured with Al18F at a target temperature of 1470°C.

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Collision Of Boosted Black Holes, John Baker, Andrew Abrahams, Peter Anninos, Steve Brandt, Richard Price, Jorge Pullin, Edward Seidel Jan 1997

Collision Of Boosted Black Holes, John Baker, Andrew Abrahams, Peter Anninos, Steve Brandt, Richard Price, Jorge Pullin, Edward Seidel

Faculty Publications

We study the radiation from a collision of black holes with equal and opposite linear momenta. Results are presented from a full numerical relativity treatment and are compared with the results from a “close-slow” approximation. The agreement is remarkable, and suggests several insights about the generation of gravitational radiation in black hole collisions. © 1997 The American Physical Society.

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Lattice Knot Theory And Quantum Gravity In The Loop Representation, Hugo Fort, Rodolfo Gambini, Jorge Pullin Jan 1997

Lattice Knot Theory And Quantum Gravity In The Loop Representation, Hugo Fort, Rodolfo Gambini, Jorge Pullin

Faculty Publications

We present an implementation of the loop representation of quantum gravity on a square lattice. Instead of starting from a classical lattice theory, quantizing, and introducing loops, we proceed backwards, setting up constraints in the lattice loop representation and showing that they have appropriate (singular) continuum limits and algebras. The diffeomorphism constraint reproduces the classical algebra in the continuum and has as solutions lattice analogues of usual knot invariants. We discuss some of the invariants stemming from Chern-Simons theory in the lattice context, including the issue of framing. We also present a regularization of the Hamiltonian constraint. We show that …

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Transients Among Binaries With Evolved Low-Mass Companions, A. R. King, J. Frank, U. Kolb, H. Ritter Jan 1997

Transients Among Binaries With Evolved Low-Mass Companions, A. R. King, J. Frank, U. Kolb, H. Ritter

Faculty Publications

We show that stable disk accretion should be very rare among low-mass X-ray binaries (LMXBs) and cataclysmic variables whose evolution is driven by the nuclear expansion of the secondary star on the first giant branch. Stable accretion is confined to neutron star systems in which the secondary is still relatively massive and to some supersoft white dwarf accretors. All other systems, including all black hole systems, appear as soft X-ray transients or dwarf novae. All long-period neutron star systems become transient well before most of the envelope mass is transferred and remain transient until envelope exhaustion. This complicates attempts to …

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Semiclassical Approach To The Hydrogen-Exchange Reaction Reactive And Transition-State Dynamics, Sophya V. Garashchuk, F. Grossmann, D. Tannor Jan 1997

Semiclassical Approach To The Hydrogen-Exchange Reaction Reactive And Transition-State Dynamics, Sophya V. Garashchuk, F. Grossmann, D. Tannor

Faculty Publications

Scattering matrix elements and symmetric transition-state resonances for the collinear H 2 + H → H + H 2 reaction are obtained using a time-dependent approach. The correlation function between reactant channel wavepackets and product channel wavepackets is used to determine the S-matrix elements. In a similar fashion, autocorrelation functions are used to extract the positions and widths of transition-state resonances. The time propagation of the wavepackets is performed by the improved semiclassical frozen Gaussian method of Herman and Kluk, which is an initial value, uniformly converged method. The agreement between the quantum and semiclassical results is far better …

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Semiclassical Approach To The Hydrogen-Exchange Reaction- Reactive And Transition-State Dynamics, Sophya V. Garashchuk, Grossmann Frank, David Tannor Jan 1997

Semiclassical Approach To The Hydrogen-Exchange Reaction- Reactive And Transition-State Dynamics, Sophya V. Garashchuk, Grossmann Frank, David Tannor

Faculty Publications

Scattering matrix elements and symmetric transition-state resonances for the collinear H 2 + H → H + H 2 reaction are obtained using a time-dependent approach. The correlation function between reactant channel wavepackets and product channel wavepackets is used to determine the S-matrix elements. In a similar fashion, autocorrelation functions are used to extract the positions and widths of transition-state resonances. The time propagation of the wavepackets is performed by the improved semiclassical frozen Gaussian method of Herman and Kluk, which is an initial value, uniformly converged method. The agreement between the quantum and semiclassical results is far better …

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The Poet And The Profits: Felicia Hemans And The Literary Marketplace, Paula R. Feldman Jan 1997

The Poet And The Profits: Felicia Hemans And The Literary Marketplace, Paula R. Feldman

Faculty Publications

No abstract provided.

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British Women Poets Of The Romantic Era: An Anthology, Paula R. Feldman Jan 1997

British Women Poets Of The Romantic Era: An Anthology, Paula R. Feldman

Faculty Publications

No abstract provided.

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International Human Rights Protection Against Psychiatric Political Abuses, George J. Alexander Jan 1997

International Human Rights Protection Against Psychiatric Political Abuses, George J. Alexander

Faculty Publications

No abstract provided.

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Contracts For Grownups, William J. Woodward Jr. Jan 1997

Contracts For Grownups, William J. Woodward Jr.

Faculty Publications

No abstract provided.

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Wards Cove Packing Or Not Wards Cove Packing? That Is Not The Question: Some Thoughts On Impact Analysis Under The Age Discrimination In Employment Act, Mack Player Jan 1997

Wards Cove Packing Or Not Wards Cove Packing? That Is Not The Question: Some Thoughts On Impact Analysis Under The Age Discrimination In Employment Act, Mack Player

Faculty Publications

No abstract provided.

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Tribal Courts And The Federal Judiciary: Opportunities And Challenges For A Constitutional Democracy, Frank Pommersheim Jan 1997

Tribal Courts And The Federal Judiciary: Opportunities And Challenges For A Constitutional Democracy, Frank Pommersheim

Faculty Publications

No abstract provided.

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Quick Computation Of Spatial Autoregressive Estimators, R. Kelley Pace, Ronald Barry Jan 1997

Quick Computation Of Spatial Autoregressive Estimators, R. Kelley Pace, Ronald Barry

Faculty Publications

Spatial estimators usually require the manipulation of n2 relations among n observations and use operations such as determinants, eigenvalues, and inverses whose operation counts grow at a rate proportional to n3. This paper provides ways to quickly compute estimates when the dependent variable follows a spatial autoregressive process, which by appropriate specification of the independent variables can subsume the case when the errors follow a spatial autoregressive process. Since only nearby observations tend to affect a given observation, most observations have no effect and hence the spatial weight matrix becomes sparse. By exploiting sparsity and rearranging computations, …

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Comparison Of Zeus Data With Standard Model Predictions For E+P → E+X Scattering At High X And Q2, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti Jan 1997

Comparison Of Zeus Data With Standard Model Predictions For E+P → E+X Scattering At High X And Q2, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

Using the ZEUS detector at HERA, we have studied the reaction e+p → e+X for Q2 > 5000 GeV2 with a 20.1 pb-1 data sample collected during the years 1994 to 1996. For Q2 below 15000 GeV2, the data are in good agreement with Standard Model expectations. For Q2 > 35000 GeV2, two events are observed while 0.145 ± 0.013 events are expected. A statistical analysis of a large ensemble of simulated Standard Model experiments indicates that with probability 6.0%, an excess at least as unlikely as that observed would occur above some Q2 cut. For x > 0.55 and y > 0.25, four …

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Measurement Of Inelastic J/Ψ Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti Jan 1997

Measurement Of Inelastic J/Ψ Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

No abstract provided.

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La Science, La Science-Fiction Et La Mémoire Dans L'Œuvre De Primo Levi, Ilona Klein Jan 1997

La Science, La Science-Fiction Et La Mémoire Dans L'Œuvre De Primo Levi, Ilona Klein

Faculty Publications

Primo Levi était doué, pour le meilleur ou pour le pire diront certains, d'une étrange mémoire, méthodique, photographique et inépuisable où s'entremêlaient les souvenirs de ses aventures de jeunesse, de ses longue randonnées avec Sandro Delmastro dans les montagnes du Piedmont, de ses années passées à étudier la chimie à l'université de Turin, de sa courte expérience de partisan, de l'extermination des juifs dont il fut témoin à Auschwitz et de son « autre vie » après la deuxième guerre mondiale. Lorsque les Nazis planifièrent la destruction et la crémation de tous les témoins de leurs crimes, et de ce …

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Study Of Photon Dissociation In Diffractive Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti Jan 1997

Study Of Photon Dissociation In Diffractive Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

Diffractive dissociation of quasi-real photons at a photon-proton centre of mass energy of W ≈ 200 GeV is studied with the ZEUS detector at HERA. The process under consideration is γp → XN, where X is the diffractively dissociated photon system of mass MX and N is either a proton or a nucleonic system with mass MN < 2 GeV. The cross section for this process in the interval 3 < MX < 24 GeV relative to the total photoproduction cross section was measured to be σDpartial/σtot = 6.2 ± 0.2(stat) ± 1.4(syst)%. After extrapolating this result to the mass interval of mφ2 < MX2 < 0.05W2 and correcting it for proton dissociation, the fraction of the total cross section attributed to single diffractive photon dissociation, γp → Xp, is found to be σSD/σtot = 13.3 ± 0.5(stat) ± 3.6(syst)%. The mass spectrum of the dissociated photon system in the interval 8 < MX < 24 GeV can be described by the triple pomeron (IP IP IP) diagram with an effective pomeron intercept of αIP(0) = 1.12 ± 0.04(stat) ± 0.08(syst). The cross section for photon dissociation in the range 3 < MX < 8 GeV is significantly higher than that expected from the triple pomeron amplitude describing the region 8 < MX < 24 GeV. Assuming that this discrepancy is due to a pomeron-pomeron-reggeon (IP IP IR) term, its contribution to the diffractive cross section in the interval 3 < MX < 24 GeV is estimated to be fIP IP IR = 26 ± 3(stat) ± 12(syst)%. © Springer-Verlag 1997.

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Defiling The Dead: Necrophilia And The Law, Tyler T. Ochoa, Christine Jones Jan 1997

Defiling The Dead: Necrophilia And The Law, Tyler T. Ochoa, Christine Jones

Faculty Publications

This article will examine the issue of criminal liability for necrophilia. Part II will address necrophilia in general and will discuss briefly why society finds such acts reprehensible. Part III will discuss existing criminal prohibitions against necrophilia in California and other states. Part IV will discuss the evidentiary use of necrophilia in proving other crimes. Finally, Part V will evaluate proposed legislation outlawing necrophilia.

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The Jurisprudence Of Yogi Berra, Gerald F. Uelmen Jan 1997

The Jurisprudence Of Yogi Berra, Gerald F. Uelmen

Faculty Publications

No abstract provided.

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