Deeply Virtual Compton Scattering and Meson Production at Jlab/CLAS

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This report reviews the recent experimental results from the CLAS collaboration (Hall B of Jefferson Lab, or JLab) on Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP) and discusses their interpretation in the framework of Generalized Parton Distributions (GPDs). The impact of the experimental data on the applicability of the GPD mechanism to these exclusive reactions is discussed. Initial results obtained from JLab 6 GeV data indicate that DVCS might already be interpretable in this framework while GPD models fail to describe the exclusive meson production (DVMP) data with the GPD parameterizations presently used. An exception is ... continued below

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136-140

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Jo, Hyon-Suk April 1, 2012.

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This report reviews the recent experimental results from the CLAS collaboration (Hall B of Jefferson Lab, or JLab) on Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP) and discusses their interpretation in the framework of Generalized Parton Distributions (GPDs). The impact of the experimental data on the applicability of the GPD mechanism to these exclusive reactions is discussed. Initial results obtained from JLab 6 GeV data indicate that DVCS might already be interpretable in this framework while GPD models fail to describe the exclusive meson production (DVMP) data with the GPD parameterizations presently used. An exception is the {phi} meson production for which the GPD mechanism appears to apply. The recent global analyses aiming to extract GPDs from fitting DVCS CLAS and world data are discussed. The GPD experimental program at CLAS12, planned with the upcoming 12 GeV upgrade of JLab, is briefly presented.

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136-140

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  • Journal Name: AIP Conf. Proc.; Journal Volume: 1441; Conference: PANIC 11, 24-29 July 2011, Cambridge, MA

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  • Report No.: JLAB-PHY-12-1477
  • Report No.: DOE/OR/23177-2003
  • Report No.: arXiv:1201.0440
  • Grant Number: AC05-06OR23177
  • DOI: 10.1063/1.3700493 | External Link
  • Office of Scientific & Technical Information Report Number: 1038753
  • Archival Resource Key: ark:/67531/metadc834763

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 2012

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Aug. 3, 2016, 3:04 p.m.

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Jo, Hyon-Suk. Deeply Virtual Compton Scattering and Meson Production at Jlab/CLAS, article, April 1, 2012; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc834763/: accessed April 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.