Deeply Virtual Compton Scattering and Meson Production at JLab/CLAS

被引：1

作者：

Jo, Hyon-Suk ^{[1
]}

机构：

[1] Inst Phys Nucl, F-91406 Orsay, France

来源：

19TH PARTICLES AND NUCLEI INTERNATIONAL CONFERENCE (PANIC11) | 2012年 / 1441卷

关键词：

Generalized Parton Distributions; Deeply Virtual Compton Scattering; Deeply Virtual Meson Production; nucleon structure; lepton-nucleon scattering; GENERALIZED PARTON DISTRIBUTIONS; EXCLUSIVE ELECTROPRODUCTION; CLAS; NUCLEON; QCD;

D O I：

10.1063/1.3700493

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页码：136 / 140

页数：5

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