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arXiv 0709.4328nucl-ex
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在JLab Hall A的深度虚拟康普顿散射

Deeply Virtual Compton Scattering at JLab Hall A

Eric Voutier

摘要:

在Jefferson实验室A厅,通过测量价夸克区质子和中子的纵向极化(e,e 'gamma)截面,研究了深虚康普顿散射反应。在质子通道,实验结果强烈支持因子分解的截面在Q2低至2 GeV 2,开放的路径,系统测量广义部分子分布(GPD)。在中子的情况下,初步的数据显示,夸克的角动量的敏感性。http://indico.cern.ch/contributionDisplay.py? contribId=89&sessionId=12&confId=9499

英文摘要:

The deeply virtual Compton scattering reaction has been investigated in the Hall A of the Jefferson Laboratory by measuring longitudinally polarized (e,e'gamma) cross sections, in the valence quark region, for protons and neutrons. In the proton channel, experimental results strongly support the factorization of the cross section at Q2 as low as 2 GeV2, opening the path to systematic measurements of generalized parton distributions (GPDs). In the neutron case, preliminary data show sensitivity to the angular momentum of quarks. http://indico.cern.ch/contributionDisplay.py?contribId=89&sessionId=12&confId=9499

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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