arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1502.07940hep-ex
收藏

7 TeV pp碰撞产生的Z玻色子衰变的终态辐射研究

A study of final-state radiation in decays of Z bosons produced in pp collisions at 7 TeV

CMS Collaboration

摘要:

微分截面的Z到μ + μ-γ衰变中的光子的生产作为一个功能的横向能量的光子和它的距离最近的μ子。这些测量的数据是用CMS探测器收集的,对应于CERN LHC提供的sqrt(s)= 7 TeV的pp碰撞的4.7个逆毫微微电子能垒的积分亮度。的截面进行比较,模拟与POWHEG和PYTHIA,其中PYTHIA是用来模拟部分子簇射和末态光子。这些模拟与数据的匹配度优于5%。

英文摘要:

The differential cross sections for the production of photons in Z to mu+ mu- gamma decays are presented as a function of the transverse energy of the photon and its separation from the nearest muon. The data for these measurements were collected with the CMS detector and correspond to an integrated luminosity of 4.7 inverse femtobarns of pp collisions at sqrt(s) = 7 TeV delivered by the CERN LHC. The cross sections are compared to simulations with POWHEG and PYTHIA, where PYTHIA is used to simulate parton showers and final-state photons. These simulations match the data to better than 5%.

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。

↑