J/ψ pair hadroproduction at next-to-leading order in nonrelativistic-QCD at ATLAS  

作　　者：孙立平 Li-Ping Sun(School of Science,Beijing University of Civil Engineering and Architecture,Beijing,China)

机构地区：[1]School of Science,Beijing University of Civil Engineering and Architecture,Beijing,China

出　　处：《Chinese Physics C》2024年第3期15-19,共5页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China (NSFC) (1905006);the Fundamental Research Funds for Beijing Universities (X18107)。

摘　　要：We present a complete study on the J/ψpair hadroproduction at next-to-leading order(NLO)in the nonrelativstic-QCD(NRQCD)framework with the pair of cc¯in either ^(3)S^([1])_(1) or ^(1)S^([8])_(0) fock state.We found that the contribution of the ^(1)S^([8])_(0) channel at NLO is essential,and for ATLAS,the NRQCD results can describe the experimental data to a certain extent.

关 键 词：NRQCD next-to-leading order ATLAS fock state 

分 类 号：O572.33[理学—粒子物理与原子核物理]