Identifying hidden charm pentaquark signal from non-resonant background in electron–proton scattering  

作　　者：Zhi Yang Xu Cao Yu-Tie Liang Jia-Jun Wu 杨智;曹须;梁羽铁;吴佳俊(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Physical Sciences,University of Chinese Academy of Sciences(UCAS),Beijing 100049,China)

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]School of Physical Sciences,University of Chinese Academy of Sciences(UCAS),Beijing 100049,China

出　　处：《Chinese Physics C》2020年第8期125-131,共7页中国物理C（英文版）

基　　金：Supported in part by the National Natural Science Foundation of China(11405222,11975278);the Pioneer Hundred Talents Program of Chinese Academy of Sci-ences(CAS)and the Key Research Program of CAS(XDPB09)。

摘　　要：In this study,we analyze the electroproduction of the LHCb pentaquark states with the assumption that they are resonant states.Our main concern is to investigate the final state distribution in the phase space to extract a feeble pentaquark signal from a large non-resonant background.The results indicate that the signal to background ratio will increase significantly with a proper kinematic cut,which will be beneficial for future experimental analysis.

关 键 词：PENTAQUARK ELECTROPRODUCTION POMERON electron-ion collider 

分 类 号：O572.33[理学—粒子物理与原子核物理]