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arXiv 2201.03963hep-ph
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Drell Yan在部分子分支方法和POWHEG匹配中的产生

Drell Yan production in the parton branching method and POWHEG matching

Armando Bermudez Martinez, Luis Ignacio Estevez Banos, Miguel Fernandez Moreira, Joel Girones Dominguez, Hannes Jung, Reiner Ramos Blazquez

摘要:

作为2021年DESY暑期学生计划的一部分,使用POWHEG方法将从Parton Branching(PB)方法获得的横向动量相关(TMD)部分子分布与次领先阶(NLO)相结合。计算得到的Drell-Yan(DY)横动量谱。在低和中等DY $p_{\rm T}$下,在13 TeV的质心能量下,理论预测与CMS实验测量结果吻合良好。CASCADE事件生成器中包含了用于匹配的新比例选择选项。

英文摘要:

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.

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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