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Title: Compton scattering and generalized polarizabilities

Abstract

In recent years, real and virtual Compton scattering off the nucleon have attracted considerable interest from both the experimental and theoretical sides. Real Compton scattering gives access to the so-called electromagnetic polarizabilities containing the structure information beyond the global properties of the nucleon such as its charge, mass, and magnetic moment. These polarizabilities have an intuitive interpretation in terms of induced dipole moments and thus characterize the response of the constituents of the nucleon to a soft external stimulus. The virtual Compton scattering reaction e- p {yields} e- p{gamma} allows one to map out the local response to external fields and can be described in terms of generalized electromagnetic polarizabilities. A simple classical interpretation in terms of the induced electric and magnetic polarization densities is proposed. We will discuss experimental results for the polarizabilities of the proton and compare them with theoretical predictions.

Authors:
 [1]
  1. Institut fuer Kernphysik, Johannes Gutenberg-Universitaet, D-55099 Mainz (Germany)
Publication Date:
OSTI Identifier:
20718902
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 768; Journal Issue: 1; Conference: 19. European conference on few-body problems in physics, Groningen (Netherlands), 23-27 Aug 2004; Other Information: DOI: 10.1063/1.1932882; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COMPARATIVE EVALUATIONS; COMPTON EFFECT; DENSITY; DIPOLE MOMENTS; ELECTRON-PROTON INTERACTIONS; MAGNETIC MOMENTS; POLARIZABILITY; POLARIZATION; PROTONS

Citation Formats

Scherer, S. Compton scattering and generalized polarizabilities. United States: N. p., 2005. Web. doi:10.1063/1.1932882.
Scherer, S. Compton scattering and generalized polarizabilities. United States. https://doi.org/10.1063/1.1932882
Scherer, S. Fri . "Compton scattering and generalized polarizabilities". United States. https://doi.org/10.1063/1.1932882.
@article{osti_20718902,
title = {Compton scattering and generalized polarizabilities},
author = {Scherer, S},
abstractNote = {In recent years, real and virtual Compton scattering off the nucleon have attracted considerable interest from both the experimental and theoretical sides. Real Compton scattering gives access to the so-called electromagnetic polarizabilities containing the structure information beyond the global properties of the nucleon such as its charge, mass, and magnetic moment. These polarizabilities have an intuitive interpretation in terms of induced dipole moments and thus characterize the response of the constituents of the nucleon to a soft external stimulus. The virtual Compton scattering reaction e- p {yields} e- p{gamma} allows one to map out the local response to external fields and can be described in terms of generalized electromagnetic polarizabilities. A simple classical interpretation in terms of the induced electric and magnetic polarization densities is proposed. We will discuss experimental results for the polarizabilities of the proton and compare them with theoretical predictions.},
doi = {10.1063/1.1932882},
url = {https://www.osti.gov/biblio/20718902}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 768,
place = {United States},
year = {2005},
month = {5}
}