标题： Dvcs @ Hermes 显示英文标题

标题： Dvcs @ Hermes

摘要： 研究广义部分子分布（GPDs）有望提供关于核子结构的新知识，包括最显著的在核子内夸克总角动量的获取。 要确定关于分布的新信息可能很困难，但在所有能够提供访问的独占过程中，深度虚拟康普顿散射（DVCS）相对简单且实验上可访问。 HERMES合作组拥有任何实验中与DVCS相关的最多样化结果，根据束流螺旋度和电荷以及靶自旋状态提取产生光子的方位分布不对称性。 在本次报告中，我们概述了HERMES DVCS结果目录，并解释了这些结果如何用于改进对基础GPDs的约束。 显示英文摘要

摘要： The study of Generalised Parton Distributions (GPDs) promises to provide new knowl- edge of the structure of the nucleon, including, most notably, access to the total angular momentum of quarks within the nucleon. It can be difficult to ascertain new information on the distributions, but amongst all the exclusive processes that can provide access, Deeply Virtual Compton Scatter- ing (DVCS) is relatively simple and experimentally accessible. The HERMES collaboration has the most diverse results pertaining to DVCS of any experiment, extracting asymmetries in the azimuthal distribution of produced photons according to both beam helicity and charge and target spin state. In this talk, we provide an overview of the HERMES DVCS result catalogue and explain how the results are used to improve constraints on the underlying GPDs.