Download or read book Gdh 2000 The Gerasimov drell hearn Sum Rule The Nucleon Spin Structure In The Resonance Region written by Dieter Drechsel and published by World Scientific. This book was released on 2001-02-05 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: The history of spin in general, and of the nucleon spin structure in particular, has been full of surprises. For the past 25 years deep inelastic lepton scattering has been studied to determine the carriers of the nucleon spin. However, it was realized only recently that a full understanding of the nucleon spin will also require detailed information on the helicity structure in the resonance region, i.e. in the realm of nonperturbative QCD.This volume gives a status report on the spin structure in the nucleon resonance region, focusing on: new experimental results from SLAC and HERMES; a first glance at the JLab experiments to map out the spin structure functions at low and intermediate four-momentum transfers; the pioneering experiment at MAMI (Mainz) to determine the Gerasimov-Drell-Hearn sum rule for real photons; and recent theoretical concepts and investigations to describe the spin structure in the frameworks of higher twist expansion, phenomenological models and chiral perturbation theory.
Download or read book GDH 2000 written by D. Drechsel and published by World Scientific. This book was released on 2001 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The history of spin in general, and of the nucleon spin structure in particular, has been full of surprises. For the past 25 years deep inelastic lepton scattering has been studied to determine the carriers of the nucleon spin. However, it was realized only recently that a full understanding of the nucleon spin will also require detailed information on the helicity structure in the resonance region, i.e. in the realm of nonperturbative QCD.This volume gives a status report on the spin structure in the nucleon resonance region, focusing on: new experimental results from SLAC and HERMES; a first glance at the JLab experiments to map out the spin structure functions at low and intermediate four-momentum transfers; the pioneering experiment at MAMI (Mainz) to determine the Gerasimov-Drell-Hearn sum rule for real photons; and recent theoretical concepts and investigations to describe the spin structure in the frameworks of higher twist expansion, phenomenological models and chiral perturbation theory.
Download or read book GDH 2002 written by M Anghinolfi and published by World Scientific. This book was released on 2003-06-13 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the GDH 2002 symposium. It is a review of the most recent results on the nucleon spin structure and related sum rules using real and virtual photons. The latest theoretical developments and the new high precision data from different laboratories are presented and discussed. The book provides a comprehensive picture of the nucleon spin studies from the perturbative domain down to the resonance and low momentum transfer region. Contents:Introduction:Introduction: GDH and Related Topics (M M Giannini)Theory:MAID and the GDH Sum Rule in the Resonance Region (L Tiator)Proton and Neutron Polarized Structure Functions from Low to High Q2 (S Simula et al.)Experiments:Experimental Results for the GDH Sum Rule on the Proton from Pion Threshold to 3 GeV (P Grabmayr)Spin Physics at HERMES (A Fantoni)Instrumentation and Future Projects:Progress in Scintillating Polarized Targets for Spin Physics (P Hautle et al.)High Accuracy Polarization and Density Measurement of a Solid State Polarized Target (Ch Rohlof & H Dutz)Spin Structure Functions in Nucleons and Nuclei:Measurement of the Helicity Asymmetry of the γp Cross Section Between 2.5 and 5.3 GeV (D I Sober et al.)The Proton Structure Function F2 in the Resonance Region (M Osipenko et al.)Helicity, Amplitudes, Resonance Structure, and Spin Polarizabilities:Resonance Structure and Polarizability of the Nucleon (D Drechsel)The Commissioning of the Hall-B Beamline of Jefferson Lab for Coherently Producing a Beam of Linearly-Polarized Photons (P L Cole et al.)Spin and Hard Scattering:Polarization Observables and Forward-Backward Asymmetry in High-Energy Deuteron Photodisintegration within the Quark–Gluon Strings Model (V Yu Grishina et al.)Polarization Phenomena by Deuteron Fragmentation into Pions (A Yu Illarionov et al.)and other papers Readership: Graduate students, academics and researchers in nuclear physics. Keywords:Nuclear Spin;Sum Rule;Polarization;Real and Virtual Photons
Download or read book Excited Nucleons And Hadron Structure Proceedings Of The Nstar 2000 Conference written by Volker Burkert and published by World Scientific. This book was released on 2001-02-28 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference NSTAR 2000 was part of a series of conferences and workshops that began in New York in 1988. Since then, the field of excited nucleons and hadron structure has developed enormously, and the scope has broadened. Most significantly, new experimental facilities have come into operation, allowing precise measurements of resonance couplings and transition form factors. The search for “missing” quark model states and gluonic excitations in complex hadronic channels is now possible.On the theory side, new and promising developments have emerged: quark models with meson degrees of freedom, hybrid baryon models, and studies of baryons in the limit of many colors. For the first time, lattice QCD has been employed to calculate masses of excited nucleons. Nucleon resonances are now recognized as providing significant contributions to the nucleon spin sum rules, as well as the Gerasimov-Drell-Hearn and Bjorken integrals, at finite momentum transfer.
Download or read book GDH 2004 written by Sebastian Kuhn and published by World Scientific. This book was released on 2005-02-21 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents an overview of the many new and exciting results, both theoretical and experimental, in the area of spin structure functions and sum rules at low to moderate photon virtuality Q2. It includes contributions from many leading scientists in the field worldwide. The volume covers the following topics: • recent results on the Gerasimov-Drell-Hearn (GDH) sum rule with real photons and its extensions to virtual photons • inclusive spin structure functions at low to moderate Q2 and their moments • exclusive measurements of nucleon spin structure in the resonance region • spin polarizabilities and Compton scattering • chiral perturbation theory and other low-energy limits of QCD • lattice QCD, duality, and phenomological models • nuclear effects and the GDH sum rule in nuclei • experimental techniques (polarized targets and beams) • future plans and projects Contents: What are These Sum Rules Good For? (X Ji)Structure of the Nucleon: Spin Observables (U Meissner)Experimental Verification of the GDH Sum Rule (K Helbing)Status of the GDH Experiment on the Deuteron at MAMI (O Jahn)Study of the Polarized Structure Functions of the Neutron at Low Q2 Using Polarized 3He (S Choi)The First Moment of g1 Measured with the CLAS Detector (G Dodge)Quark Hadron Duality Tests on Polarized Structure Functions Using CLAS (T Forest)Proton Spin Structure at High Parton Densities (B Badelek)Nucleon Spin Structure and Its Connections to Various Sum Rules (J Soffer)Spin Asymmetries for Exclusive and Semi-Exclusive Reactions with CLAS (A Biselli)Helicity Dependence of the Nπ(π) Processes on the Proton: New Results from Mainz (P Pedroni)Strangeness Photoproduction and the GDH Experiments at LEPs (Y Ohashi)What We are Learning about the Quark Structure of Hadrons from Lattice QCD (J Negele)Higher Twists in Spin Structure Functions from a “Constituent Quark” Point of View (A Sidorrov & C Weiss)Polarized Structure Functions and the GDH Integral from Lattice QCD (G Schierholz)Spin Asymmetry and GDH Sum Rule for Real and Virtual Photons for the Deuteron (H Arenhövel et al.)The Generalized GDH Sum for 3He (K Slifer)A Study of the Final State Effects in the Electro-disintegration of a Polarized Helium-3 Target (G Salmè et al.)and other papers Readership: Graduate students and researchers in nuclear, high energy and particle physics. Keywords:Sum Rule;Nucleon Spin Structure Functions;Real Photons;Electron Scattering;Polarized Beams;Polarized TargetsKey Features:Features contributions from renowned experts in the field, including Xiangdong Ji, UIf Meissner and John NegelePresents a comprehensive overview of the fieldIncludes up-to-date research results from many international laboratories and pedagogical overview talks
Download or read book GDH 2002 written by Marco Anghinolfi and published by World Scientific. This book was released on 2003 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the GDH 2002 symposium. It is a review of the most recent results on the nucleon spin structure and related sum rules using real and virtual photons. The latest theoretical developments and the new high precision data from different laboratories are presented and discussed. The book provides a comprehensive picture of the nucleon spin studies from the perturbative domain down to the resonance and low momentum transfer region.
Download or read book Electromagnetic Interactions in Nuclear and Hadron Physics written by Mamoru Fujiwara and published by World Scientific. This book was released on 2002-06-27 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the following topics: (1) meson and hadron production by real and virtual photon interaction with nucleons and nuclei; (2) astrophysical studies via photoreactions and hadron reactions; (3) new technologies for the electromagnetic probes and detector development; (4) nuclear structure studies with electromagnetic probes; (5) fundamental symmetries with electromagnetic probes and related problems. The proceedings have been selected for coverage in: • Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings) Contents:Search for New Baryon Resonances (B Saghai & Z Li)Overview of Laser-Electron Photon Facility at SPring-8 (T Nakano)Weak Nucleon Form Factors (P A Souder)High Energy Approaches to Low Energy Phenomena in Astrophysics (S M Austin)Photo-Nuclear Reactions in the Big-Bang and Supernovae (T Kajino et al.)Transition Properties of Low-Lying Resonances in a Relativistic Quark Model with a Meson Cloud Effect (Y B Dong et al.)Weak Interaction, Giant Resonances and Nuclear Astrophysics (K Langanke & G Martínez-Pinedo)Electroproduction of Strange Nuclei (E V Hungerford)Photonuclear Reactions of Light Nuclei and Few-Body Problems (T Shima et al.)On Use of Quark–Hadron Duality in Photoabsorption Sum Rules (S B Gerasimov)Chiral Symmetry and Hadron Properties in Lattice QCD (A W Thomas)Photoproduction Experiments with Polarized HD Targets (S Bouchigny et al.)Development of a Compact Photon Detector for ANKE at COSY Julich (H Büscher et al.)and other papers Readership: Graduate students and researchers in nuclear physics. Keywords:
Download or read book GDH 2004 written by Sebastian Kuhn and published by World Scientific Publishing Company Incorporated. This book was released on 2005 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume covers the following topics; - recent results on the Gerasimov--Drell-Hern (GDH) sum rule with real photons and its extensions to virtual photons - inclusive spin structure functions at low to moderate Q2 and their moments - exclusive measurements of nucleon spin structure in the resonance region - spin polarizabilities and compton scattering - chiral perturbation theory and other low-energy limits of QCD - lattice QCD, duality, and phenomological models - nuclear effects and the GDH sum rule in nuclei - experimental techniques (polarized targets and bearns) - future plans and projects - Features contributions from renowned experts in the field, including Xiangdon Ji, Ulf Meissner and John Negele - Presents a comprehensive overview of the field - Includes up-to-date research results from many international laboratories and pedagogical overview talks
Download or read book Spin 2004 written by Franco Bradamante and published by World Scientific. This book was released on 2005-08-02 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume covers the most recent advances in the field of spin physics, including the latest research in high energy and nuclear physics and the study of nuclear spin structure. The comprehensive coverage also includes polarized proton and electron acceleration and storage as well as polarized ion sources and targets. Many significant new results and achievements on the different topics considered at the symposium are presented in this book for the first time. Contents: Present Understanding of the Nucleon Spin Structure (A Metz)Understanding Transversity: Present and Future (V Barone)Results and Future Prospects for Muon (g - 2) (B L Roberts)First Results from RHIC Spin Program and Future Prospects (N Saito)Speculations in Hadron Spectroscopy (J M Richard)Nucleon Form Factors (K de Jager)Experimental Status of the GDH Sum Rule (H Arends)Polarized Structure Functions with Neutrino Beams (S Forte)Higher Twists Resummation in Inclusive and Semi-Inclusive Spin-Dependent DIS (O V Teryaev)A New Angular Momentum Sum Rule (E Leader)Single Spin Asymmetry Measurements for π0 Inclusive Productions in p + p↑ → π0 + X and π- + p↑ → π0+ X Reactions at 70 and 40 GeV Respectively (S B Nurushev)Polarisation in the eRHIC Electron (Positron) Ring (D P Barber)Polarisation Build Up in COMPASS 6LiD Target (J Koivuniemi)and other papers (a total of 170 contributions) Readership: Researchers and graduate students in spin physics, including experimental, theoretical and accelerator physics. Keywords:Spin;Fundamental Symmetries;QCD;Nuclear Physics;Hadronic Physics;Polarized Targerts;Polarized Beams;PolarimetryKey Features:
Download or read book Proceedings of the 31st International Conference on High Energy Physics ICHEP 2002 written by S. Bentvelsen and published by Elsevier. This book was released on 2012-12-02 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first precision measurements on CP violation in the B system are reported. Both the BELLE and the BABAR collaboration presented, among others, results for sin 2ß with much improved accuracy. Results from the Sudbury Neutrino Observatory, SNO, also deserve to be mentioned. The convincing evidence of solar neutrino oscillations had been presented by SNO prior to the conference; a full presentation was given at the conference. An incredibly precise measurement of the anomalous magnetic moment of the muon is reported, a fresh result from the Brookhaven National Laboratory. Apart from these distinct physics highlights, there are also the first results from the new Tevatron run and from the relativistic heavy ion collider RHIC. Theorists write of our ever better understanding of the Standard Model and of what might lie beyond. Risky as it is to highlight only a couple of exciting subjects, it is merely meantto whet the appetite for further reading.
Download or read book Spin Structure of the Nucleon written by Erhard Steffens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of the most recent results from the field of quark-gluon structure of the nucleon, in particular how the spin of the nucleon is shared by its constituents. After very intriguing results from CERN and SLAC at the end of the 1980s, the last decade has seen a set of second-generation experiments at high energy accelerators that have yielded precise information on the solution of the 'Spin Crisis' - as well as opening up new questions. The articles are written by experts from the leading collaboration and theory groups as well as providing an expert summary of the state of the art, the book points the way to future research directions. Its main focus is on semi-inclusive and exclusive measurements of deep inelastic lepton scattering, which enables for the first time the determination of the flavor-separated quark spin distributions. Future developments on generalized parton distributions and their interpretation as well as the transverse spin structure are also covered. An indispensable volume for all working in hadronic physics.
Download or read book NSTAR 2004 written by Jean-Paul Bocquet and published by World Scientific. This book was released on 2004-11-23 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent advances in the field of nucleon resonances presented at the IX International Workshop on the Physics of Excited Baryons, NSTAR2004. A complete overview of the most recent experimental results obtained worldwide on baryon spectroscopy is presented together with theoretical progress on related topics ranging from resonance parameters extraction to lattice-QCD calculations through effective field theory. Of particular interest, a large part of the book is devoted to exotic states with quantum numbers of pentaquarks, whose recent discovery represents a new chapter in hadronic physics. The proceedings have been selected for coverage in: • Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings) • CC Proceedings — Engineering & Physical Sciences Contents: Search for Pentaquark States with CLAS at Jefferson Lab (V Burkert et al.)The Status of Pentaquark Spectroscopy on the Lattice (T G Kovàcs et al.)Pentaquark Spectra in the Diquark Picture (C Semay et al.)CLAS Results from the First and Second Resonance Regions (L C Smith et al.)Dynamical Baryon Resonances from Chiral Unitarity (A Ramos et al.)Generalized Parton Distributions in the Light-Front Constituant Quark Model (S Simula)Compton Scattering of Polarized Photons on the Proton at GRAAL (O Bartalini et al.)New Evidence for the Breathing Mode of the Nucleon from High-Energy Proton-Proton Scattering (H-P Morsch & P Zupranski)Strong Decay of N and Δ Resonances in the Point-Form Formalism (T Melde et al.)Baryon Form Factors in the Three Forms of Relativistic Kinematics (B Juliá-Díaz et al.)and other papers Readership: Researchers in the field of nucleon resonances. Keywords:Nucleon Resonances;Baryon Spectroscopy;Exotic States;Pentaquarks;Meson Photo- and Hadroproduction;Coupled-Channel Calculations;Partial Wave Analysis;Lattice-QCD;Chiral and QCD-Inspired Models
Download or read book New Trends in HERA Physics 1999 written by G. Grindhammer and published by Springer Science & Business Media. This book was released on 2000-04-01 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experts on elementary-particle physics, both theorists and experimentalists, met to present their latest results on the various aspects of HERA physics, specifically, the H1 and ZEUS collaborations at HERA and the collaborations at LEP and the Tevatron were presented. The topics included: proton structure function; polarized ep scattering; final states in deep-inelastic scattering (DIS), with special emphasis on jet production at low x, power corrections in DIS, soft particle production, and instanton effects; photon structure function; photoproduction of jets and hadrons; heavy-flavour and charmonium production; elastic and diffractive ep scattering; and new physics at HERA.
Download or read book Excited Nucleons and Hadronic Structure written by V. Burkert and published by World Scientific. This book was released on 2001 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference NSTAR 2000 was part of a series of conferences and workshops that began in New York in 1988. Since then, the field of excited nucleons and hadron structure has developed enormously, and the scope has broadened. Most significantly, new experimental facilities have come into operation, allowing precise measurements of resonance couplings and transition form factors. The search for ?missing? quark model states and gluonic excitations in complex hadronic channels is now possible.On the theory side, new and promising developments have emerged: quark models with meson degrees of freedom, hybrid baryon models, and studies of baryons in the limit of many colors. For the first time, lattice QCD has been employed to calculate masses of excited nucleons. Nucleon resonances are now recognized as providing significant contributions to the nucleon spin sum rules, as well as the Gerasimov-Drell-Hearn and Bjorken integrals, at finite momentum transfer.
Download or read book NSTAR 2002 written by S A Dytman and published by World Scientific. This book was released on 2003-07-07 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent advances in the physics of nucleon resonances, including new experimental results from laboratories in the USA, Europe, and Asia, and new developments in effective field theories, quark models, and lattice gauge theory. Contents: Review of the Accumulated Knowledge of E2/M1 and C2/M1 for the Delta (1232) (D Drechsel)Two-Pion Photoproduction from CLAS and CB-ELSA-the Search for Missing Resonances (U Thoma)Helicity Dependence of Pion Photoproduction: New Results from Mainz (P Pedroni)Baryons: Past, Present, and Future from the Lattice (G Bali)First Pion Photoproduction Double Polarization Results with Polarized HD at LEGS (A Lehmann)Missing Resonances: Searching in Strange Places (C Bennhold)Guidelines for Identifying New Baryon Resonances (M Manley)The Bethe–Salpeter Equation and Unitarization of Chiral Perturbation Theory Amplitudes (J Nieves)Lattice Results for Baryon Properties (D Richards)Combined π0 and π+ Electroproduction Analysis (H Egiyan)and other papers Readership: Graduate students and researchers in hadronic physics. Keywords:Hadrons;Nucleons;Photoproduction
Download or read book NSTAR 2002 written by Steven A. Dytman and published by World Scientific. This book was released on 2003 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent advances in the physics of nucleon resonances, including new experimental results from laboratories in the USA, Europe, and Asia, and new developments in effective field theories, quark models, and lattice gauge theory.
Download or read book Proceedings of the International Conference on High Energy Physics written by and published by . This book was released on 2002 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
