The loop effects on the chargino decays _1~±→_1~0ff' in the MSSM  

作　　者：Qingjun Xu Shusheng Xu Zhenjun Xiao Ligang Jin 

机构地区：[1]Department of Physics,Hangzhou Normal University [2]State Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences [3]Department of Physics and Institute of Theoretical Physics,Nanjing Normal University

出　　处：《Chinese Science Bulletin》2014年第17期1968-1977,共10页

基　　金：supported by the National Natural Science Foundation of China (11147023,11305044 and 11235005);Zhejiang Provincial Natural Science Foundation (LQ12A05003)

摘　　要：The lighter chargino three body decays_1~±→_1~0ff' via the W boson and the charged Higgs boson H± were studied in the R-parity conserved Minimal Supersymmetric Standard Model(MSSM).We treat _1~± decays as production and decay of W± and H±:i.e.,_1~±→_1~0W±(H±)→_1~0ff'.Both higgsinolike and wino-like^v1decays were well investigated.These decays are calculated at 1-loop level and the loop corrections are found to be less than three percent.The signal of the charged Higgs H production from^v1decays is discussed.It will offer important information about the chargino and neutralino sector,as well as the charged Higgs sector in the MSSM.The lighter chargino three body decays ～χ±1→～χ0 1ff ′ via the W^± boson and the charged Higgs boson H^± were studied in the R-parity conserved Minimal Supersymmetric Standard Model （MSSM）. We treat ～χ±1 decays as production and decay of W^± and H^± i.e.,～χ±1→～χ01W^±（H^±） → χ0 1ff ′. Both higgsino- like and wino-like ～χ±1 decays were well investigated. These decays are calculated at 1-loop level and the loop corrections are found to be less than three percent. The signal of the charged Higgs H^± production from ～χ±1 decays is discussed. It will offer important information about the chargino and neutralino sector, as well as the charged Higgs sector in the MSSM.

关 键 词：MSSM 衰减 HIGGS玻色子 环路 标准模型 宇称守恒 衰变 打火机 

分 类 号：O571.32[理学—粒子物理与原子核物理]