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N* Physics - Proceedings Of The Fourth Cebaf/int Workshop [Kietas viršelis]

Edited by (Thomas Jefferson Nat Accelerator Facility, Usa), Edited by (Argonne Nat'l Lab, Usa)
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It has been well recognized that the study of the excitations of the nucleon can shed light on the nonperturbative aspects of QCD. New opportunities for such study will be opened in the next few years with the commissioning of experiments in Hall B of the Continuous Electron Beam Accelerator Facility (CEBAF) at the Thomas Jefferson National Accelerator Facility (JLab). Photo- and electroproduction studies of single and double pions, rhos, omegas, and kaons will be conducted with unprecedented precision. The Hall B CLAS detector is a major step forward, promising to provide kinematically complete measurements of cross sections and spin observables. The task of extracting new insights from such detailed measurements will require close coordination between experimental and theoretical physicists.To help optimize this interface between theory and experiment, a joint CEBAF/INT workshop was held at the Institute of Nuclear Theory in Seattle, September 9-13, 1996. The foci of the 1996 workshop included: N N transition form factors as predicted by QCD-inspired models and their experimental consequences; theoretical techniques employing QCD sum rules, perturbative QCD, and lattice QCD; reaction theories of photo- and electro-production of mesons; theoretical issues in the eta meson, vector meson, and two-pion production channels; progress in developing amplitude analyses for the available and expected data; the relationship between the Hall B program and those of other new experimental facilities.This proceeding will serve readers as both a current perspective on the field and a guide to future experimental and theoretical research directions.
Introduction v(2) Preface vii Baryons and QCD 1(11) N. Isgur Dispersion Relations in Pion Photoproduction 12(7) A. Donnachie Reaction Theories for N* Excitations in XXXN and XXXN Reactions 19(10) T. -S. H. Lee The N* Physics Program: Where are We and Where are We Going? 29(9) P. Stoler Recent Calculations of Electromagnetic and Strong Decays of N* 38(10) A. Leviatan R. Bijker Test of Constituent Quark Model in XXX and XXX Photoproduction 48(10) M. Arima Baryon Current Matrix Elements in a Relativistic Quark Model 58(10) B. D. Keister S. Capstick Light-Front Calculations of Electromagnetic Form Factors for N - N* Transitions 68(10) F. Cardarelli E. Pace G. Salme S. Simula Open Problems in Hadronic Structure 78(12) F. Iachello The Role of Massive States in Chiral Perturbation Theory 90(10) U. MeiBner Baryons in Chiral Constituent Quark Model 100(10) L. Ya. Glozman Delta Electroproduction in a Chiral Bag Model Approach 110(10) D. H. Lu A. W. Thomas A. G. Williams E(2)/M(1) and C(2)/M(1) in the Electroproduction of the XXX and the Chiral Quark Soliton Model 120(6) T. Watabe K. Goeke Monopole Excitations of Baryons in the NJL Soliton Model 126(10) H. Weigel XXX Photoproduction in Chiral Color Dielectric Model 136(11) S. C. Phatak Glueballs and Hybrids 147(9) L. S. Kisslinger Pion Photoproduction and the Off-Shell Behavior of the XXX N Interaction 156(10) K. Nakayama Ch. Schutz S. Krewald J. Speth W. Pfeil Kaon Photoproduction on the Nucleon: Status and Future Prospects 166(11) C. Bennhold T. Mart D. Kusno Determination of N* Parameters in the Review of Particle Properties 177(9) D. M. Manley N* Physics at the AGS with the Crystal Ball Multiphoton Spectrometer 186(9) B. M. K. Nefkens Photoexcitation of the S(11)(1535)-Resonance on the Proton, on the Neutron, and in Nuclei 195(12) B. Krusche Measurement of the E(2)/M(1) Ratio in the N XXX Transition 207(10) R. Beck Theory of Eta Photo- and Electroproduction 217(9) N. C. Mukhopadhyay J. -F. Zhang M. Benmerrouche Vector Mesons Below 2 GeV 226(7) A. Donnachie N* Resonances and 2XXX Production 233(10) E. Oset J. A. Gomez Tejedor F. Cano S. Hirenzaki P. Fernandez de Cordoba L. Alvarez-Ruso M. J. Vicente-Vacas A Model for Two-Pion Photoproduction Amplitudes 243(10) W. Roberts A. Rakotovao Negative Parity Baryons in the QCD Sum Rule 253(13) M. Oka D. Jido A. Hosaka Meson Photoproductions Off Nucleons in the Chiral Quark Model 266(9) Z. Li Unquenching the Quark Model 275(1) N. Isgur Spin Observables in Pseudoscalar Meson Photoproduction 276(10) F. Tabakin B. Saghai Baryon Resonance Extraction from XXXN Data using a Multichannel Unitary Model 286(10) S. A. Dytman T. P. Vrana T. -S. H. Lee A Dispersion Theoretical Analysis of the E/M Ratio of the XXX(1232) Resonance 296(10) L. Tiator D. Drechsel O. Hanstein Meson Production Experiments at TJNAL and BNL 306(10) W. J. Briscoe Opportunities for Polarization Physics with the Crystal Ball Detector 316(9) J. R. Comfort N* Physics at COSY 325(10) H. P. Morsch List of Participants 335