大型强子对撞机上8 TeV顶夸克对实验数据与希格斯玻色子总散射截面  

The 8 TeV top quark pair production data and Higgs boson cross section at the LHC

作　　者：毛建龙 木沙江·卡得尔 王剑华 沙依甫加马力·达吾来提[1] MAO Jian-long;MUSAJAN Kadir;WANG Jian-hua;SAYIPJAMAL Dulat(School of Physics and Technology,Xinjiang University,Urumqi 830046,China;School of Physics and Telecommunication Engineering,Shaanxi University of Technology,Hanzhong 723000,China)

机构地区：[1]新疆大学物理科学与技术学院,新疆乌鲁木齐830046 [2]陕西理工大学物理与电信工程学院,陕西汉中723000

出　　处：《陕西理工大学学报（自然科学版）》2022年第4期85-92,共8页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：国家自然科学基金项目(11965020)。

摘　　要：研究了ATLAS 8 TeV顶夸克对产生微分散射截面(dσ/d|y_(tt)|、dσ/d m_(tt)、dσ/d|y_(tt)|、dσ/d p^(t)_(T))、归一化微分散射截面((dσ/d y_(tt))/σ、(dσ/d m_(tt))/σ、(dσ/d|y_(tt)|)/σ、(dσ/d p^(t)_(T))/σ)实验数据和CMS 8 TeV顶夸克对产生归一化微分散射截面((dσ/d y_(tt))/σ、(dσ/d m_(tt))/σ、(dσ/d y_(tt))/σ、(dσ/d p^(t)_(T))/σ)实验数据对希格斯玻色子总散射截面的影响。首先给出希格斯玻色子总散射截面σ_(H)(gg→H)与CT14HERA2不同味道的部分子分布函数的关联性,然后用CT14HERA2.54和更新后的部分子分布函数计算质心能量为13 TeV时通过胶子-胶子聚合道希格斯玻色子产生的总散射截面,最后进一步提供希格斯玻色子产生总散射截面σ_(H)(gg→H)与顶夸克对产生微分散射截面之间的关联性。We study_(tt)he impact of the differential cross section(dσ/d|y_(tt)|,dσ/d m_(tt),dσ/d|y_(tt)|and dσ/d p^(t)_(T))and normalized differential cross section((dσ/d|y_(tt)|)/σ,(dσ/d m_(tt))/σ,(dσ/d|y_(tt)|)/σand(dσ/d p^(t)_(T))/σ)for top quark pair production data from_(tt)he ATLAS and normalized differential cross section((dσ/d y_(tt))/σ,(dσ/d m_(tt))/σ,(dσ/d y_(tt))/σand(dσ/d p^(t)_(T))/σ)for top quark pair production data from_(tt)he CMS,at a center-of-mass energy of 8 TeV,on the Higgs boson cross section.First,we give the correlation cosine between Higgs boson cross sectionσ_(H)(gg→H)and different flavors of CT14HERA2.Then we calculate the total cross section of Higgs boson production through gluon-gluon fusion at the LHC with center of mass energy of 13 TeV using CT14HERA2.54 and ePump updated parton distribution functions.Furthermore,we provide the correlations between the Higgs boson cross sectionσ_(H)(gg→H)and the differential cross sections of top quark pair production at the LHC with center of mass energy of 8 TeV.

关 键 词：希格斯玻色子 顶夸克对 部分子分布函数 

分 类 号：O572.2[理学—粒子物理与原子核物理]