Study of C parity violating and strangeness changing J/ψ→ PP weak decays  

作　　者：Yueling Yang Junliang Lu Mingfei Duan Jinshu Huang Junfeng Sun 杨悦玲;卢俊良;段明非;黄金书;孙俊峰(Institute of Particle and Nuclear Physics,Henan Normal University,Xinxiang 453007,China;School of Physics and Electronic Engineering,Nanyang Normal University,Nanyang 473061,China)

机构地区：[1]Institute of Particle and Nuclear Physics,Henan Normal University,Xinxiang 453007,China [2]School of Physics and Electronic Engineering,Nanyang Normal University,Nanyang 473061,China

出　　处：《Chinese Physics C》2021年第8期45-53,共9页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11705047,11981240403,U1632109,11547014,11875122);the Program for Innovative Research Team in University of Henan Province(19IRTSTHN018);the Excellent Youth Foundation of Henan Province(212300410010);the Chinese Academy of Sciences Large-Scale Scientific Facility Program(1G2017IHEPKFYJ01)。

摘　　要：Although J/ψ weak decays are rare,they are possible within the standard model of elementary particles.Inspired by the potential prospects of the future intensity frontier,the C parity violating J/ψ→πη^(′),ηη′decays and the strangeness changing J/ψ→πK,Kη^(′)decays are studied via the perturbative QCD approach.It is determined that the J/ψ→ηη^(′) decays have relatively large branching ratios,approximately on the order of 10^(11),which might be within the measurement capability and sensitivity of the future STCF experiment.

关 键 词：J/Ψ weak decay perturbative QCD factorization 

分 类 号：O572.2[理学—粒子物理与原子核物理]