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arXiv 1709.09690hep-ph
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用LHC数据约束大x处的胶子PDF

Constraining the gluon PDF at large x with LHC data

Emanuele R. Nocera, Maria Ubiali

摘要:

NNPDF合作组最近提出了NNPDF 3.1,它是质子部分子分布函数(PDF)的一个新的测定,包括一些新的数据,其中一些对大x下的胶子PDF特别敏感。在这方面的贡献,我们提出了两个新的分析结果的基础上NNPDF3.1。首先,我们研究了ATLAS 2011年7 TeV包含喷流数据对胶子PDF的影响,包括不同的快度箱。其次,我们定量地比较了对大x胶子PDF敏感的所有测量所提供的约束,即包含喷流截面、Z玻色子的横向动量分布和顶对快度分布。

英文摘要:

The NNPDF collaboration has recently presented NNPDF3.1, a new determination of the parton distribution functions (PDFs) of the proton including a number of new data, some of which are particularly sensitive to the gluon PDF at large x. In this contribution, we present the results of two new analyses based on NNPDF3.1. First, we study the impact of the ATLAS 2011 7 TeV inclusive jet data on the gluon PDF including different rapidity bins. Second, we quantitatively compare the constraints provided by all measurements sensitive to the large-x gluon PDF, namely inclusive jet cross sections, the transverse momentum distributions of the Z-boson and top-pair rapidity distributions.

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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