The 9th International Symposium on High Energy Spin Physics, held in Bonn, 6-15 September 1990, attracted 280 participants from 16 countries. This meet ing covered not only fundamental experimental and theoretical spin phenomena but also technological developments in polarized beams and targets. For the first time intermediate energy spin physics with electron machines was discussed extensively. Highlights included the work on polarized high energy electron beams at LEP and TRISTAN and the failure of the standard model in connection with spin phenomena, in particular the growth of the spin…mehr
The 9th International Symposium on High Energy Spin Physics, held in Bonn, 6-15 September 1990, attracted 280 participants from 16 countries. This meet ing covered not only fundamental experimental and theoretical spin phenomena but also technological developments in polarized beams and targets. For the first time intermediate energy spin physics with electron machines was discussed extensively. Highlights included the work on polarized high energy electron beams at LEP and TRISTAN and the failure of the standard model in connection with spin phenomena, in particular the growth of the spin asymmetry in violent proton-proton scattering. Also the presentation of different models in con nection with the still-unsolved 'proton spin crisis' and the proposals for four different experiments to determine the spin structure functions caused lively and sometimes controversial discussions. The Organizing Committee would like to thank all speakers for their excel lent talks, the conveners for the organization of the parallel sessions, and the International Advisory Committee for their advice. Four workshops preceded the symposium. 160 participants, among them many young physicists, discussed mainly technological spin problems. These papers are published in separate proceedings. We gratefully acknowledge the enthusiastic help of the members of our institute in preparing and running the conference and the workshops, especially Mrs. D. FaSbender, Mrs. E. Wendorf, Mrs. J. Wetzel, and Dr. U.Idschok.
The wide coverage of the recent international meeting at Bonn on high energy spin physics is reflected in this proceedings volume. Not only are fundamental and theoretical spin phenomena included but also technical developments in polarized beams and targets, and, for the first time, intermediate energy spin physics with electron machines.
Inhaltsangabe
I Plenary Talks.- History of the Development of Polarized Targets.- Precise New High-P?2 Spin Measurements.- Polarization Results from IHEP, Serpukhov.- Experiments with Fermilab Polarized Proton and Antiproton Beams (For the Fermilab E-704 Collaboration).- High P?2 Spin Theories.- Quantum Chromodynamics in Exclusive Processes.- Magnetic Moments of the Baryons: An Experimental Review.- Hyperon Polarization at High Energy.- Experiments with Spin at PSI.- Elastic Scattering of Polarized Neutrons on Polarized Protons at Saturne II.- Polarization at LEP.- Polarization at HERA.- Spin Physics with Polarized Electrons at the SLC.- Experimental Study of Polarization in Japan.- Ideas and Models for the Proton Spin.- Future Experiments to Study the Internal Spin Structure of Nucleons.- The Revival of Longitudinal Photons and Gluons in Massless QED and QCD. The Infrared Problems in QCD.- Polarization Observables in Photo- and Electro-Production.- Recent Polarization Results of Photoproduction Experiments at Intermediate Energies from Kharkov.- Polarization Program at ELSA.- Spin Physics at MAMI.- Spin Physics at MIT-Bates.- Polarization Measurements with Real Photons at YERPHI.- First Experimental Test of the Siberian Snake Concept.- What Is Needed to Accelerate Polarized Beams in Large New Proton Rings.- Summary of the 2nd Workshop on Siberian Snakes and Polarization in Circular Machines.- Summary Report of the Workshop on Polarized Electron Sources and Electron Spin Polarimeters.- Summary of the Workshop on Polarized Solid Targets.- Summary of the Workshop on Polarized Gas Targets.- Summary of the International Workshop on Polarized Ion Sources and Polarized Gas Jets.- Spin Physics at KAON.- Spin Physics at LEAR.- Spin Physics at CEBAF.- The Anomalous Magnetic Moment of the Muon.- Summary of the 9th International Symposium on High Energy Spin Physics.- II Parallel Sessions.- Session A: Spin Structure of the Nucleon: Experimental and Theoretical.- Attempts to Understand g1p(x): An Overview.- SLAC Experiment E142.- The SMC Experiment.- Measurement of the Deep-Inelastic Spin-Dependent Structure Functions of the Proton and Neutron at HERA.- Measuring the Drell-Hearn Gerasimov Sum-Rule.- Proton Strangeness Content-Spin Connection.- The Proton Spin and U(1)-Problem.- Flavour Symmetry Breaking and the Relation Between the Proton Quark Spins and the ?? Coupling.- Quark Spin Content of the Proton in the Skyrme Model.- The Spin Structure of the Neutron and Proton.- The Relation Between the Proton Quark Spin and the ??-Meson Coupling.- Radiative Effects in Semi-Inclusive Deep Inelastic Scattering of Polarized Leptons by Polarized Nucleons.- Session B: Hadron Reactions at Large Momentum Transfer.- On Single-Spin Asymmetry in Hadron Production in the Central Region.- Single Spin Asymmetries in Inclusive Production and Multiple Quark Scattering.- Exclusive Photon-Proton Reactions at Moderately Large Momentum Transfer.- Spin Effects in Exclusive High Energy Processes in QCD at Large Distances.- Spin Observables for Nucleon-Nucleon Elastic Scattering at Large Momentum Transfer.- Geometry of Proton-Proton Spin Effects at 12 to 28 GeV.- Spin Effects in the Cumulative Production of Protons and Deuterons in Proton-Nucleus Interactions at 17-64 GeV.- Description of Spin Processes: Kinematic Hierarchy and Low-Energy Theorems.- Production Polarization and Magnetic Moment of gonshi and ?? Hyperons: Preliminary Results from FNAL E-756.- Session C: Spin Effects at Intermediate Energies.- Measurement of the Spin Rotation Parameters R and A in ?p Elastic Scattering in the Energy Range from 450 to 600 MeV.- The Measurement of Wolfenstein Observables in Proton-Deuteron Elastic Scattering at 0. 50, 0. 65 and 0. 8 GeV.- Investigation of Polarization Transfer in p-d Scattering at Ep = 22.7 MeV.- Elastic Scattering of Polarized Protons from Polarized 3He at Intermediate Energies.- Pion Elastic Scattering from Polarized 13C in the Energy Region of the [3,3] Resonance.- Measurement of Coulomb-Nuclear Interference in the pp Analyzing Power Ay at the IUCF Cooler Ring.- Structures in the Nucleon-Nucleon System.- Trimetric Plot of A for pp Elastic Scattering.- The Analysis of the Narrow Dibaryon Resonances Based on the Diquark Cluster Model.- Investigation of the Reaction $${rm{bar pp}} to bar Lambda Lambda$$ Close to Threshold at LEAR.- QCD and Deuteron Structure at Small Distances: Theoretical Motivations for Experiments with Beam of High Energy Polarized Deuterons in Dubna - Collaboration ALFA.- Tensor Analysing Power T20 and Polarization Transfer Coefficient æ for Deuteron Fragmentation at 9 GeV/c.- Elastic Electron Deuteron Scattering on a Tensor Polarized Solid ND3 Target.- Effects of Deuteron Polarization in ?d ? pn and Dibaryon Resonances.- Dibaryon Resonances in e?+d?e?+n+p and the Deuteron Wave Function Structure at Short Distances.- 3P0 Model of Soft Binary Processes 566.- Session D: Spin and Symmetries.- Parity Violation in Proton-Proton Scattering at COSY.- Bates Parity Experiment on Elastic Electron Carbon Scattering.- Measurement of the Time Reversal Violating R-Parameter in the Decay of 8Li.- On Null Tests of Time-Reversal Invariance.- Charge Symmetry Breaking at TRIUMF: Past, Present, and Future.- Feasibility of CP-Invariance Test in $${rm{bar YY}}$$ Production.- Polarization Investigations and Verification of the High-Spin Hadron Model Without Power Divergences.- Session E: Instrumentation.- A Polarimeter to Determine the Vertical and Horizontal Polarization of Protons in the Indiana Cooler.- Deuteron Polarimeter for Intermediate-Energy Experiments at JINR Dubna.- Possible Method for Measuring Beam Polarization in High Energy Linear Colliders.- On the Possibility of Polarization Measurement at the HERA Storage Ring by Synchrotron Radiation Scattering on the Electron Beam.- Feasibilities of Production of the Polarized Beams Beyond TEV on the External Target.- Atomic Nuclei as "Analyzers" of the Meson Photoproduction Amplitudes on the Nucleons.- List of Participants.- Index of Contributors.
I Plenary Talks.- History of the Development of Polarized Targets.- Precise New High-P?2 Spin Measurements.- Polarization Results from IHEP, Serpukhov.- Experiments with Fermilab Polarized Proton and Antiproton Beams (For the Fermilab E-704 Collaboration).- High P?2 Spin Theories.- Quantum Chromodynamics in Exclusive Processes.- Magnetic Moments of the Baryons: An Experimental Review.- Hyperon Polarization at High Energy.- Experiments with Spin at PSI.- Elastic Scattering of Polarized Neutrons on Polarized Protons at Saturne II.- Polarization at LEP.- Polarization at HERA.- Spin Physics with Polarized Electrons at the SLC.- Experimental Study of Polarization in Japan.- Ideas and Models for the Proton Spin.- Future Experiments to Study the Internal Spin Structure of Nucleons.- The Revival of Longitudinal Photons and Gluons in Massless QED and QCD. The Infrared Problems in QCD.- Polarization Observables in Photo- and Electro-Production.- Recent Polarization Results of Photoproduction Experiments at Intermediate Energies from Kharkov.- Polarization Program at ELSA.- Spin Physics at MAMI.- Spin Physics at MIT-Bates.- Polarization Measurements with Real Photons at YERPHI.- First Experimental Test of the Siberian Snake Concept.- What Is Needed to Accelerate Polarized Beams in Large New Proton Rings.- Summary of the 2nd Workshop on Siberian Snakes and Polarization in Circular Machines.- Summary Report of the Workshop on Polarized Electron Sources and Electron Spin Polarimeters.- Summary of the Workshop on Polarized Solid Targets.- Summary of the Workshop on Polarized Gas Targets.- Summary of the International Workshop on Polarized Ion Sources and Polarized Gas Jets.- Spin Physics at KAON.- Spin Physics at LEAR.- Spin Physics at CEBAF.- The Anomalous Magnetic Moment of the Muon.- Summary of the 9th International Symposium on High Energy Spin Physics.- II Parallel Sessions.- Session A: Spin Structure of the Nucleon: Experimental and Theoretical.- Attempts to Understand g1p(x): An Overview.- SLAC Experiment E142.- The SMC Experiment.- Measurement of the Deep-Inelastic Spin-Dependent Structure Functions of the Proton and Neutron at HERA.- Measuring the Drell-Hearn Gerasimov Sum-Rule.- Proton Strangeness Content-Spin Connection.- The Proton Spin and U(1)-Problem.- Flavour Symmetry Breaking and the Relation Between the Proton Quark Spins and the ?? Coupling.- Quark Spin Content of the Proton in the Skyrme Model.- The Spin Structure of the Neutron and Proton.- The Relation Between the Proton Quark Spin and the ??-Meson Coupling.- Radiative Effects in Semi-Inclusive Deep Inelastic Scattering of Polarized Leptons by Polarized Nucleons.- Session B: Hadron Reactions at Large Momentum Transfer.- On Single-Spin Asymmetry in Hadron Production in the Central Region.- Single Spin Asymmetries in Inclusive Production and Multiple Quark Scattering.- Exclusive Photon-Proton Reactions at Moderately Large Momentum Transfer.- Spin Effects in Exclusive High Energy Processes in QCD at Large Distances.- Spin Observables for Nucleon-Nucleon Elastic Scattering at Large Momentum Transfer.- Geometry of Proton-Proton Spin Effects at 12 to 28 GeV.- Spin Effects in the Cumulative Production of Protons and Deuterons in Proton-Nucleus Interactions at 17-64 GeV.- Description of Spin Processes: Kinematic Hierarchy and Low-Energy Theorems.- Production Polarization and Magnetic Moment of gonshi and ?? Hyperons: Preliminary Results from FNAL E-756.- Session C: Spin Effects at Intermediate Energies.- Measurement of the Spin Rotation Parameters R and A in ?p Elastic Scattering in the Energy Range from 450 to 600 MeV.- The Measurement of Wolfenstein Observables in Proton-Deuteron Elastic Scattering at 0. 50, 0. 65 and 0. 8 GeV.- Investigation of Polarization Transfer in p-d Scattering at Ep = 22.7 MeV.- Elastic Scattering of Polarized Protons from Polarized 3He at Intermediate Energies.- Pion Elastic Scattering from Polarized 13C in the Energy Region of the [3,3] Resonance.- Measurement of Coulomb-Nuclear Interference in the pp Analyzing Power Ay at the IUCF Cooler Ring.- Structures in the Nucleon-Nucleon System.- Trimetric Plot of A for pp Elastic Scattering.- The Analysis of the Narrow Dibaryon Resonances Based on the Diquark Cluster Model.- Investigation of the Reaction $${rm{bar pp}} to bar Lambda Lambda$$ Close to Threshold at LEAR.- QCD and Deuteron Structure at Small Distances: Theoretical Motivations for Experiments with Beam of High Energy Polarized Deuterons in Dubna - Collaboration ALFA.- Tensor Analysing Power T20 and Polarization Transfer Coefficient æ for Deuteron Fragmentation at 9 GeV/c.- Elastic Electron Deuteron Scattering on a Tensor Polarized Solid ND3 Target.- Effects of Deuteron Polarization in ?d ? pn and Dibaryon Resonances.- Dibaryon Resonances in e?+d?e?+n+p and the Deuteron Wave Function Structure at Short Distances.- 3P0 Model of Soft Binary Processes 566.- Session D: Spin and Symmetries.- Parity Violation in Proton-Proton Scattering at COSY.- Bates Parity Experiment on Elastic Electron Carbon Scattering.- Measurement of the Time Reversal Violating R-Parameter in the Decay of 8Li.- On Null Tests of Time-Reversal Invariance.- Charge Symmetry Breaking at TRIUMF: Past, Present, and Future.- Feasibility of CP-Invariance Test in $${rm{bar YY}}$$ Production.- Polarization Investigations and Verification of the High-Spin Hadron Model Without Power Divergences.- Session E: Instrumentation.- A Polarimeter to Determine the Vertical and Horizontal Polarization of Protons in the Indiana Cooler.- Deuteron Polarimeter for Intermediate-Energy Experiments at JINR Dubna.- Possible Method for Measuring Beam Polarization in High Energy Linear Colliders.- On the Possibility of Polarization Measurement at the HERA Storage Ring by Synchrotron Radiation Scattering on the Electron Beam.- Feasibilities of Production of the Polarized Beams Beyond TEV on the External Target.- Atomic Nuclei as "Analyzers" of the Meson Photoproduction Amplitudes on the Nucleons.- List of Participants.- Index of Contributors.
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