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arXiv 0705.2925hep-ph
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HERA II的深虚康普顿散射

Deeply Virtual Compton Scattering at HERA II

Laurent Schoeffel

摘要:

基于H1探测器在HERA II期间所获得的数据,提出了一种新的弹性深虚康普顿散射(DVCS)测量方法。用基于QCD的计算很好地描述了这些数据。第一次,在碰撞模式下,使用记录在$e^-p$和$e^+p$中的数据获得束流电荷不对称性。一个显着的非零值的测量,有关的QCD和QED过程的干扰,即DVCS和Bethe-Heitler反应。

英文摘要:

A new measurement is presented of elastic deeply virtual Compton scattering (DVCS) based on data taken by the H1 detector during the complete HERA II period. The data are well described by QCD based calculations. For the first time, a beam charge asymmetry is obtained in a colliding mode, using data recorded in $e^-p$ and $e^+p$. A significant non zero value is measured, related to the interference of QCD and QED processes, namely the DVCS and Bethe-Heitler reactions.

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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