Tackling the kaon structure function at EicC  

作　　者：Gang Xie Chengdong Han Rong Wang Xurong Chen 谢港;韩成栋;王荣;陈旭荣(Guangdong Provincial Key Laboratory of Nuclear Science,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]Guangdong Provincial Key Laboratory of Nuclear Science,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China [2]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China [3]School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics C》2022年第6期192-202,共11页中国物理C（英文版）

基　　金：Supported by the Strategic Priority Research Program of Chinese Academy of Sciences(XDB34030301);the National Natural Science Foundation of China(12005266);the Guangdong Major Project of Basic and Applied Basic Research(2020B0301030008)。

摘　　要：Measuring the kaon structure beyond proton and pion structures is a prominent topic in hadron physics,as it is one way to understand the nature of the Nambu-Goldstone boson of QCD and observe the interplay between the EHM and HB mechanisms for hadron mass generation.In this study,we present a simulation of the leading A baryon tagged deep inelastic scattering experiment at EicC(Electron-ion collider in China),which is engaged to unveil the internal structure of kaon via the Sullivan process.According to our simulation results,the suggested experiment will cover the kinematical domain of 0.05≤xK≤0.85 and Q^(2)up to 50 GeV^(2),with the acceptable statistical uncertainties.In the relatively low-Q^(2) region(<10 GeV^(2)),the Monte-Carlo simulation shows a good statistical precision(<5%)for the measurement of the kaon structure function F2K.In the high-Q^(2) region(up to 50 GeV^(2)),the statistical uncertainty of F_(2)^(K) is also acceptable(<10%)for the data at xK<0.8.To perform such an experiment at an electron-ion collider,a high-performance zero-degree calorimeter is suggested.The magnitude of the background process and the assumed detector capabilities are also discussed and illustrated in the paper.

关 键 词：kaon structure function electron-ion collider parton distribution function tagged deep inelastic scattering 

分 类 号：O572.3[理学—粒子物理与原子核物理]