山西大学学报（自然科学版）2024，Vol.47Issue(3)：591-597,7.DOI:10.13451/j.sxu.ns.2023077
单喷注实验数据对部分子分布函数的影响
Impact of the Inclusive Jet Data on Parton Distribution Functions
摘要
Abstract
We study the impact of the inclusive jet data from the Compact muon Solenoid(CMS),at the Large Hadron Collider(LHC),at a center-of-mass energy of 2.76 TeV,on CT18 Parton Distribution Functions(PDFs)at the next-to-next-to leading order(NNLO)accuracy,using the fast and efficient tool-Error PDF Updating Method Package(ePump).First,we calculate the inclusive jet double differential cross-section with non-pertubative correction using CT18NNLO PDFs at the next-to leading order(NLO)accura-cy.Then,using error PDF updating method package,the CMS 2.76 TeV inclusive jet double differential cross-section data and theo-retical prediction,we update the CT18NNLO PDFs.We find the error band of the gluon PDF reduced by 1%in the range 0.1<x<0.4,the central value dramatically decreased in the high x range(x>0.3)at Q=100 GeV.We also provide the ratios of the NLO QCD theoretical predictions from CT18NNLO and CT18NNLO+Jet to the measurement of the double-differential inclusive jet pro-duction cross-section.The predictions are in agreement with the measured cross-section for most of the data points.关键词
部分子分布函数/单喷注/ePumpKey words
parton distribution function/inclusive jet/ePump分类
数理科学引用本文复制引用
王启荣,毛建龙,沙依甫加马力·达吾来提..单喷注实验数据对部分子分布函数的影响[J].山西大学学报（自然科学版）,2024,47(3):591-597,7.基金项目
国家自然科学基金(11965020) （11965020）
