arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2007.01984hep-ex
收藏

在$\sqrt{s} =$ 13 TeV上测量轻子WW衰变模式中的包容性和微分希格斯玻色子产生截面

Measurement of the inclusive and differential Higgs boson production cross sections in the leptonic WW decay mode at $\sqrt{s} =$ 13 TeV

CMS Collaboration

摘要:

测量了在$\sqrt{s} =$ 13 TeV质子-质子碰撞中希格斯玻色子玻色子截面和微分截面,其中希格斯玻色子衰变为一对W玻色子,W玻色子随后衰变为一个电子、一个μ子和一对中微子的终态.该分析基于2016-2018年期间在LHC使用CMS探测器收集的数据,对应于137 fb $^{-1}$的积分亮度。生产截面测量的希格斯玻色子和相关的喷流多重性的横向动量的函数。提取希格斯玻色子信号并同时展开,以使用最大似然拟合数据中观察到的分布来校正选择效率和分辨率效应。经测量,积分基准横截面为86.5 $\pm$ 9.5 fb,与标准模型预期值82.5 $\pm$ 4.2 fb一致。在差分测量中未观察到与标准模型预期的显著偏离。

英文摘要:

Measurement of the fiducial inclusive and differential production cross sections of the Higgs boson in proton-proton collisions at $\sqrt{s} =$ 13 TeV are performed using events where the Higgs boson decays into a pair of W bosons that subsequently decay into a final state with an electron, a muon, and a pair of neutrinos. The analysis is based on data collected with the CMS detector at the LHC during 2016-2018, corresponding to an integrated luminosity of 137 fb$^{-1}$. Production cross sections are measured as a function of the transverse momentum of the Higgs boson and the associated jet multiplicity. The Higgs boson signal is extracted and simultaneously unfolded to correct for selection efficiency and resolution effects using maximum-likelihood fits to the observed distributions in data. The integrated fiducial cross section is measured to be 86.5 $\pm$ 9.5 fb, consistent with the Standard Model expectation of 82.5 $\pm$ 4.2 fb. No significant deviation from the Standard Model expectations is observed in the differential measurements.

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。

↑