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Title: Generalized parton distributions from deep virtual compton scattering at CLAS

Abstract

Here, we have analyzed the beam spin asymmetry and the longitudinally polarized target spin asymmetry of the Deep Virtual Compton Scattering process, recently measured by the Jefferson Lab CLAS collaboration. Our aim is to extract information about the Generalized Parton Distributions of the proton. By fitting these data, in a largely model-independent procedure, we are able to extract numerical values for the two Compton Form Factors $$H_{Im}$$ and $$\tilde{H}_{Im}$$ with uncertainties, in average, of the order of 30%.

Authors:
 [1]
  1. Institut de Physique Nucleaire d'Orsay, Orsay (France)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
986372
Report Number(s):
JLAB-PHY-10-1131; DOE/OR/23177-1159; arXiv:1003.0307
Journal ID: ISSN 0370-2693; PII: S0370269310005290; TRN: US201017%%220
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Accepted Manuscript
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 689; Journal Issue: 4-5; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASYMMETRY; COMPTON EFFECT; FORM FACTORS; POLARIZED TARGETS; SPIN; Deeply virtual Compton Scattering; generalized parton distribution; spin asymmetry; data analysis method

Citation Formats

Guidal, M. Generalized parton distributions from deep virtual compton scattering at CLAS. United States: N. p., 2010. Web. doi:10.1016/j.physletb.2010.04.053.
Guidal, M. Generalized parton distributions from deep virtual compton scattering at CLAS. United States. doi:10.1016/j.physletb.2010.04.053.
Guidal, M. Sat . "Generalized parton distributions from deep virtual compton scattering at CLAS". United States. doi:10.1016/j.physletb.2010.04.053. https://www.osti.gov/servlets/purl/986372.
@article{osti_986372,
title = {Generalized parton distributions from deep virtual compton scattering at CLAS},
author = {Guidal, M.},
abstractNote = {Here, we have analyzed the beam spin asymmetry and the longitudinally polarized target spin asymmetry of the Deep Virtual Compton Scattering process, recently measured by the Jefferson Lab CLAS collaboration. Our aim is to extract information about the Generalized Parton Distributions of the proton. By fitting these data, in a largely model-independent procedure, we are able to extract numerical values for the two Compton Form Factors $H_{Im}$ and $\tilde{H}_{Im}$ with uncertainties, in average, of the order of 30%.},
doi = {10.1016/j.physletb.2010.04.053},
journal = {Physics Letters. Section B},
number = 4-5,
volume = 689,
place = {United States},
year = {2010},
month = {4}
}

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