Overview of nucleon structure studies
Creators
- 1. Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States)
- 2. Department of Physics, College of William and Mary, Williamsburg, Virginia 23187 (United States)
Description
A brief overview of the recent activity in the measurement of the elastic electromagnetic proton and neutron form factors is presented. It is discussed how the quality of the data has been greatly improved by performing double polarization experiments, and the role of two-photon exchange processes will be highlighted. The spatial information on the quark charge distribibutions in the nucleon resulting from the form factors measurements will be discussed, as well as the steady rate of improvements made in the lattice QCD calculations. It is discussed how generalized parton distributions have emerged as a unifying theme in hadron physics linking the spatial densities extracted from form factors with the quark momentum distribution information residing in quark structure functions. The recent progress in the electromagnetic excitation of the Δ(1232) resonance will also briefly be discussed
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nuclphysa.2008.02.244Additional details
Identifiers
- DOI
- 10.1016/j.nuclphysa.2008.02.244;
- arXiv
- arXiv:0710.5200v2;
- PII
- S0375-9474(08)00343-6;
Publishing Information
- Journal Title
- Nuclear Physics. A
- Journal Volume
- 805
- Journal Issue
- 1-4
- Journal Page Range
- p. 210-220
- ISSN
- 0375-9474
- CODEN
- NUPABL
Conference
- Title
- 23. international nuclear physics conference
- Acronym
- INPC 2007
- Dates
- 3-8 Jun 2007
- Place
- Tokyo (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40043718
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DELTA-1232 BARYONS; ELASTIC SCATTERING; ELECTROMAGNETIC FORM FACTORS; EXCITATION; NEUTRONS; PHOTONS; PROTONS; QUANTUM CHROMODYNAMICS; QUARKS; STRUCTURE FUNCTIONS
- Descriptors DEC
- BARYONS; BOSONS; DELTA BARYONS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY-LEVEL TRANSITIONS; FERMIONS; FIELD THEORIES; FORM FACTORS; FUNCTIONS; HADRONS; MASSLESS PARTICLES; N*BARYONS; NUCLEONS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; SCATTERING
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.