Hadronic Physics at Jefferson Lab

Hadronic Physics at Jefferson Lab
Author:
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Total Pages: 90701
Release: 2008
Genre:
ISBN:

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I describe some of the lattice QCD work in support of the hadronic physics program at Jefferson Lab. In particular, there is a strong emphasis on the determination of the excited state hadron spectrum, as well as determining the spin content of nucleons and other hadrons.

JLab

JLab
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Total Pages:
Release: 2003
Genre:
ISBN:

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Precision measurements of the structure of nucleons and nuclei in the regime of strong interaction QCD are now possible with the availability of high current polarized electron beams, polarized targets, and recoil polarimeters, in conjunction with modern spectrometers and detector instrumentation. The physics at JLab will be highlighted using two recent measurements of general interest. The ratio of the proton electric to magnetic form factors indicates the importance of the role of angular momentum in the structure of the nucleon. The existence of 5-quark configurations in the ground state wavefunctions of hadrons is confirmed by a narrow peak attributed to an exotic baryon with strangeness S=+1. These and other examples will be used to illustrate the capabilities and focus of the experimental program at JLab.

Physics Opportunities with the 12 GeV Upgrade at Jefferson Lab

Physics Opportunities with the 12 GeV Upgrade at Jefferson Lab
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Total Pages:
Release: 2012
Genre:
ISBN:

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We are at the dawn of a new era in the study of hadronic nuclear physics. The non-Abelian nature of Quantum Chromodynamics (QCD) and the resulting strong coupling at low energies represent a significant challenge to nuclear and particle physicists. The last decade has seen the development of new theoretical and experimental tools to quantitatively study the nature of confinement and the structure of hadrons comprised of light quarks and gluons. Together these will allow both the spectrum and the structure of hadrons to be elucidated in unprecedented detail. Exotic mesons that result from excitation of the gluon field will be explored. Multidimensional images of hadrons with great promise to reveal the dynamics of the key underlying degrees of freedom will be produced. In particular, these multidimensional distributions open a new window on the elusive spin content of the nucleon through observables that are directly related to the orbital angular momenta of quarks and gluons. Moreover, computational techniques in Lattice QCD now promise to provide insightful and quantitative predictions that can be meaningfully confronted with, and elucidated by, forthcoming experimental data. In addition, the development of extremely high intensity, highly polarized and extraordinarily stable beams of electrons provides innovative opportunities for probing (and extending) the Standard Model, both through parity violation studies and searches for new particles. Thus the 12 GeV upgrade of the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab will enable a new experimental program with substantial discovery potential to address these and other important topics in nuclear, hadronic and electroweak physics.

Sixth International Conference on Perspectives in Hadronic Physics

Sixth International Conference on Perspectives in Hadronic Physics
Author: S. Boffi
Publisher: American Institute of Physics
Total Pages: 492
Release: 2008-11-04
Genre: Science
ISBN:

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The aim of the Conference was to discuss recent results and perspectives on the theoretical and experimental investigation of the structure of free hadrons and hadrons in the nuclear medium, as well as the structure of hadronic matter both at normal and extreme conditions. The Volume is a useful update of the subject for theorists and experimentalists working in medium and high energy nuclear physics.

Hypernuclear Physics at Jefferson Lab

Hypernuclear Physics at Jefferson Lab
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Total Pages:
Release: 2005
Genre:
ISBN:

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The Continuous Electron Beam Accelerator Facility (CEBAF) has been successfully carrying out hadronic physics studies since 1996 at the Thomas Jefferson National Accelerator Facility (JLab) in Virginia, USA. The characteristics of this electron beam, together with those of the experimental equipment, offer a unique opportunity to study the electro-production of hypernuclei through the reaction A(e, e[prime]K[sup +])B[sub [Lambda]], where the hypernuclear production is tagged by the detection of the scattered electron in coincidence with the produced kaon. The kaon is a part of the associated strangeness pair production with a [Lambda] hyperon remaining embedded in the nuclear medium to form the hypernucleus. The hypernuclear physics program will cover an important part of the JLab experimental program over the next few years. This short review will focus mainly on a few subjects, and some experimental details of the Hall A experiment, where the authors have primarily responsibilities, will be presented.

Hadronic Multi-Particle Final State Measurements with CLAS at Jefferson Lab

Hadronic Multi-Particle Final State Measurements with CLAS at Jefferson Lab
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Total Pages:
Release: 2002
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ISBN:

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Precision measurements in the neutrino sector are becoming increasingly feasible due to the development of relatively high-rate experimental capabilities. These important developments command renewed attention to the systematic corrections needed to interpret the data. Hadronic multi-particle final state measurements made using CLAS at Jefferson Lab, together with a broad theoretical effort that links electro-nucleus and neutrino-nucleus data, will address this problem, and will elucidate long-standing problems in intermediate energy nuclear physics. This new work will ultimately enable precision determinations of fundamental quantities such as the neutrino mixing matrix elements in detailed studies of neutrino oscillations.

Exclusive Reactions at High Momentum Transfer IV

Exclusive Reactions at High Momentum Transfer IV
Author: Anatoly Radyushkin
Publisher: World Scientific
Total Pages: 486
Release: 2011
Genre: Science
ISBN: 981432955X

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The Proceedings include talks given at the 4th Workshop on Exclusive Reactions at High Momentum Transfer at Jefferson Lab, Newport News, VA USA, the world's leading facility performing research on nuclear, hadronic and quark-gluon structure of matter. Exclusive reactions are becoming one of the major sources of information about the deep structure of the nucleons and other hadrons. The workshop focused on the application of a variety of exclusive reactions at high momentum transfer, utilizing unpolarized and polarized beams and targets, to obtain information about nucleon ground state and excited state structure at short distances. This is a subject which is central to the programs of current accelerators and especially planned future facilities. The topics include: generalized parton distributions, deeply virtual Compton scattering, deeply virtual meson production (DVMP), transverse structure of hadrons (TMD), hadron form factors ? elastic and transition, quantum chromodynamics (perturbative, non-perturbative, lattice calculations), and physics to study at an Electron Ion Collider.

Perspectives In Hadronic Physics - Proceedings Of The Second International Conference

Perspectives In Hadronic Physics - Proceedings Of The Second International Conference
Author: Boffi Sigfrido
Publisher: #N/A
Total Pages: 512
Release: 1999-12-29
Genre:
ISBN: 981454325X

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This volume discusses theoretical and experimental activities in the investigation of nucleon and nuclear structure by electromagnetic and hadronic probes at intermediate and high energies. The focus is on laboratory activities, recent progress concerning the structure of hadrons, relativistic many-body approaches, deep inelastic scattering and correlations in nuclei.

Exclusive Reactions at High Momentum Transfer IV

Exclusive Reactions at High Momentum Transfer IV
Author: A. V. Radyushkin
Publisher: World Scientific
Total Pages: 486
Release: 2011
Genre: Science
ISBN: 9814329568

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The Proceedings include talks given at the 4th Workshop on Exclusive Reactions at High Momentum Transfer at Jefferson Lab, Newport News, VA, USA, the world''s leading facility performing research on nuclear, hadronic and quark-gluon structure of matter. Exclusive reactions are becoming one of the major sources of information about the deep structure of the nucleons and other hadrons. The workshop focused on the application of a variety of exclusive reactions at high momentum transfer, utilizing unpolarized and polarized beams and targets, to obtain information about nucleon ground state and excited state structure at short distances. This is a subject which is central to the programs of current accelerators and especially planned future facilities. The topics include: generalized parton distributions, deeply virtual Compton scattering, deeply virtual meson production (DVMP), transverse structure of hadrons (TMD), hadron form factors - elastic and transition, quantum chromodynamics (perturbative, non-perturbative, lattice calculations), and physics to study at an Electron Ion Collider.

Exclusive Processes at High Momentum Transfer

Exclusive Processes at High Momentum Transfer
Author: A. V. Radyushkin
Publisher: World Scientific
Total Pages: 416
Release: 2002
Genre: Science
ISBN: 9812382550

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This book focuses on the physics of exclusive processes at high momentum transfer and their description in terms of generalized parton distributions, perturbative QCD, and relativistic quark models. It covers recent developments in the field, both theoretical and experimental. Contents: Perspectives on Exclusive Processes in QCD (S J Brodsky); High-t Meson Photo- and Electroproduction: A Window on Partonic Structure of Hadrons (J-M Laget); Nucleon Hologram with Exclusive Leptoproduction (A Belitsky & D Muller); QCD Factorization for the Pion Diffractive Dissociation into Two Jets (D Yu Ivanov); GPDs, Form Factors and Compton Scattering (P Kroll); Real Compton Scattering from the Proton (A Nathan); Resonance Exchange Contributions to Wide-Angle Compton Scattering: The D-Term (T Oppermann); Proton-Antiproton Annihilation into Two Photons at Large s (C Weiss); Quark--Hadron Duality Studies at Jefferson Lab; An Overview of New and Exisiting Results (C Keppel); Novel Hard Semiexclusive Processes and Color Singlet Clusters in Hadrons (M Strikman et al.); and other papers. Readership: Theoretical and experimental researchers in nuclear and elementary particle physics.