Scalar neutrino dark matter in the BLMSSM  

作　　者：Ming-Jie Zhang Shu-Min Zhao Xing-Xing Dong Zhong-Jun Yang Tai-Fu Feng 张明杰;赵树民;董幸幸;杨忠军;冯太傅(Department of Physics,Hebei University,Baoding 071002,China;Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province,Baoding 071002,China;Department of Physics,Chongqing University,Chongqing 401331,China)

机构地区：[1]Department of Physics,Hebei University,Baoding 071002,China [2]Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province,Baoding 071002,China [3]Department of Physics,Chongqing University,Chongqing 401331,China

出　　处：《Chinese Physics C》2021年第9期73-80,共8页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(NNSFC)(11535002,11605037,11705045);Natural Science Foundation of Hebei Province(A2020201002);the youth top-notch talent support program of the Hebei Province。

摘　　要：The BLMSSM is an extension of the minimal supersymmetric standard model(MSSM).Its local gauge group is SU(3)C×SU(2)L×U(1)Y×U(1)B×U(1)L.Supposing the lightest scalar neutrino is a dark matter candidate,we study the relic density and the spin independent cross section of sneutrino scattering off a nucleon.We calculate the numerical results in detail and find a suitable parameter space.The numerical discussion can confine the parameter space and provide a reference for dark matter research.

关 键 词：dark matter sneutrino SUPERSYMMETRY 

分 类 号：O572.321[理学—粒子物理与原子核物理]