论文标题
PPBAR碰撞中的单光子产生和KT因素化框架以及对其差异的研究
Single photon production in ppBar collision in the collinear and kt-factorisation framework and investigation of their differences
论文作者
论文摘要
计算PPBAR碰撞中单个光子的横截面。有许多子过程，例如LO和NLO碰撞，导致单个光子。研究了LO碰撞，其中一种（康普顿散射）强烈依赖于Gluon分布函数。在扩散中考虑了脱壳（K_T依赖性）和壳的部分，并讨论了它们的差异。由Martin-Ryskin-watt（MRW）方法计算的，用于脱壳part量的未集成的Parton分布功能（UPDF）。在壳中的部分中，通过MMHT 2014 LO PDF获得了综合的Parton分布函数（PDFS），这些功能是通过实验确定的。为了研究理论结果的准确性，将它们与Fermilab Tevatron的Dø和CDF协作所采用的实验数据进行了比较。
The cross section of the single photon in ppBar collision is calculated. There are many subprocesses, for example the LO and NLO collisions, leading to the single photon. The LO collisions, the one of which (Compton scattering) is strongly dependent on the gluon distribution function, are investigated. Both the off-shell (k_t dependent) and on-shell partons are considered in the diffusions, and their differences are discussed. The unintegrated parton distribution functions (UPDFs), used for the off-shell partons, are calculated by the Martin-Ryskin-Watt (MRW) method. In the case of the on-shell partons, the integrated parton distribution functions (PDFs), are obtained by MMHT 2014 LO PDFs which are determined experimentally. To investigate the accuracy of the theoretical results, they are compared with the experimental data that are taken by the DØ and CDF collaborations at Fermilab Tevatron.
