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Title: Virtual deep Compton scattering from Hall A at Jefferson Laboratory; Diffusion Compton profondement virtuelle dans le Hall A au Jefferson Laboratory

Abstract

Generalized Parton Distributions (GPDs), introduced in the late 90s, provide a universal description of hadrons in terms of the underlying degrees of freedom of Quantum Chromodynamics: quarks and gluons. GPDs appear in a wide variety of hard exclusive reactions and the advent of high luminosity accelerator facilities has made the study of GPDs accessible to experiment. Deeply Virtual Compton Scattering (DVCS) is the golden process involving GPDs. The first dedicated DVCS experiment ran in the Hall A of Jefferson Lab in Fall 2004. An electromagnetic calorimeter and a plastic scintillator detector were constructed for this experiment, together with specific electronics and acquisition system. The experiment preparation, data taking and analysis are described in this document. Results on the absolute cross section difference for opposite beam helicities provide the first measurement of a linear combination of GPDs as a function of the momentum transfer to the nucleon.

Authors:
 [1]
  1. Univ. Pierre et Marie Curie, Paris (France)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1054162
Report Number(s):
JLAB-PHY-05-402; DOE/ER/40150-4963
DOE Contract Number:
AC05-84ER40150
Resource Type:
Thesis/Dissertation
Resource Relation:
Related Information: JLAB-E99-114
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Electromagnetic probe; Nucleon structure; Exclusive reactions; Generalized Parton Distributions (GPDs); Deeply Virtual Compton Scattering (DVCS); Jefferson Lab (CEBAF)

Citation Formats

Camacho, Carlos Munoz. Virtual deep Compton scattering from Hall A at Jefferson Laboratory; Diffusion Compton profondement virtuelle dans le Hall A au Jefferson Laboratory. United States: N. p., 2005. Web. doi:10.2172/1054162.
Camacho, Carlos Munoz. Virtual deep Compton scattering from Hall A at Jefferson Laboratory; Diffusion Compton profondement virtuelle dans le Hall A au Jefferson Laboratory. United States. doi:10.2172/1054162.
Camacho, Carlos Munoz. Wed . "Virtual deep Compton scattering from Hall A at Jefferson Laboratory; Diffusion Compton profondement virtuelle dans le Hall A au Jefferson Laboratory". United States. doi:10.2172/1054162. https://www.osti.gov/servlets/purl/1054162.
@article{osti_1054162,
title = {Virtual deep Compton scattering from Hall A at Jefferson Laboratory; Diffusion Compton profondement virtuelle dans le Hall A au Jefferson Laboratory},
author = {Camacho, Carlos Munoz},
abstractNote = {Generalized Parton Distributions (GPDs), introduced in the late 90s, provide a universal description of hadrons in terms of the underlying degrees of freedom of Quantum Chromodynamics: quarks and gluons. GPDs appear in a wide variety of hard exclusive reactions and the advent of high luminosity accelerator facilities has made the study of GPDs accessible to experiment. Deeply Virtual Compton Scattering (DVCS) is the golden process involving GPDs. The first dedicated DVCS experiment ran in the Hall A of Jefferson Lab in Fall 2004. An electromagnetic calorimeter and a plastic scintillator detector were constructed for this experiment, together with specific electronics and acquisition system. The experiment preparation, data taking and analysis are described in this document. Results on the absolute cross section difference for opposite beam helicities provide the first measurement of a linear combination of GPDs as a function of the momentum transfer to the nucleon.},
doi = {10.2172/1054162},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 14 00:00:00 EST 2005},
month = {Wed Dec 14 00:00:00 EST 2005}
}

Thesis/Dissertation:
Other availability
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