论文标题
超疗法$ ppb $ collisions中的临时康普顿散射
Timelike Compton scattering in ultraperipheral $pPb$ collisions
论文作者
论文摘要
对光子诱导相互作用中的独家过程的研究使我们能够探测广义的Parton分布（GPD），这些分布（GPD）提供了有关Hadrons Quark和Gluon含量的3维描述的信息。在本文中，我们研究了LHC的超疗法$ ppb $碰撞中的时间表康普顿散射（TCS）。这样的过程的特征是通过子过程$γp\rightarrowγ^*p \ rightarrow l^+ l^ - p $的独家发光产生，其中实际光子处于原子核发出的最初状态。假设给定GPD的给定模型，则估算了TCS差异横截面，以及与TCS和Bethe -Heitler（BH）幅度之间的干扰相关的贡献。考虑到LHC检测器涵盖的运动范围，对TC，BH和干扰贡献的预测进行了预测。
The study of exclusive processes in photon - induced interactions allow us to probe the generalized parton distributions (GPDs), which provide information about the 3 dimensional description of the quark and gluon content of hadrons. In this paper we investigate the timelike Compton scattering (TCS) in ultraperipheral $pPb$ collisions at the LHC. Such process is characterized by the exclusive dilepton production through the subprocess $γp \rightarrow γ^*p \rightarrow l^+ l^- p$, with the real photon in the initial state being emitted by the nucleus. Assuming a given model for the GPDs, the TCS differential cross section is estimated as well the contribution associated to the interference between the TCS and Bethe - Heitler (BH) amplitudes. Predictions for the TCS, BH and interference contributions are presented considering the kinematical range covered by the LHC detectors.
