Published June 1, 2008 | Version v1
Journal article

Overview of nucleon structure studies

  • 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.2008.02.244

Additional 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)

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.