论文标题
Parton分支方法中的Drell Yan生产和Powheg匹配
Drell Yan production in the parton branching method and POWHEG matching
论文作者
论文摘要
作为2021年DESY夏季学生计划的一部分，使用POWHEG方法将从Parton分支（PB）方法获得的横向动量依赖（TMD）分布与近代领先顺序（NLO）合并。执行了所得的DREL-YAN（DY）横向动量光谱的计算。在低和中间的dy $ p _ {\ rm t} $下，发现了理论预测与CMS实验在13 tev的质量中心能量进行的测量的良好一致性。匹配的新比例选择选项已包含在Cascade事件生成器中。
As part of the DESY summer student program 2021, transverse momentum dependent (TMD) parton distributions obtained from the Parton Branching (PB) method were combined with next-to-leading-order (NLO) using the POWHEG method. Computations of the resulting Drell-Yan (DY) transverse momentum spectrum were performed. A good agreement of the theoretical predictions with the measurement performed by the CMS experiment at the center-of-mass energy of 13 TeV is found, at low and intermediate DY $p_{\rm T}$. The new scale choice option for the matching has been included in the CASCADE event generator.
