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arXiv 2104.03191hep-phhep-ex
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A0数据对LHC希格斯玻色子产生横截面的影响

Impact of A0 data on the Higgs boson production cross section at the LHC

Francesco Giuli

摘要:

在这次演讲中,我们提出了一种方法来提高理论预测的准确性希格斯玻色子生产截面在大型强子对撞机使用轻子角分布的测量。在这方面,我们利用轻子角系数的灵敏度与纵向Z玻色子极化的部分子密度函数(PDF)的胶子解决从入射质子,以限制希格斯玻色子截面胶子融合过程。我们发现,在LHC运行3和高亮度HL-LHC的纵向极化角系数的高统计测定提高了50%的广泛的希格斯玻色子rapidities的PDF系统的希格斯玻色子截面预测。这项研究是使用开源的拟合框架xFitter进行的。本演讲参考了以下论文:arXiv:2012.10298[hep-ph]

英文摘要:

In this talk, we present a way to improve the accuracy of theoretical predictions for Higgs boson production cross sections at the LHC using the measurements of lepton angular distributions. In this regards, we exploit the sensitivity of the lepton angular coefficient associated with the longitudinal Z-boson polarization to the parton density function (PDF) for gluons resolved from the incoming protons, in order to constrain the Higgs boson cross section from gluon fusion processes. We find that high-statistics determinations of the longitudinally polarized angular coefficient at the LHC Run 3 and high-luminosity HL-LHC improve the PDF systematics of the Higgs boson cross section predictions by 50% over a broad range of Higgs boson rapidities. This study has been conducted using the open-source fitting framework xFitter. This talk refers to the following paper: arXiv:2012.10298[hep-ph]

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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