Extending the MSSM with Singlet Higgs and Right Handed Neutrino for the Self-Interacting Dark Matter  

作　　者：康海晶 王雯宇 

机构地区：[1]Institute of Theoretical Physics,College of Applied Science,Beijing University of Technology

出　　处：《Communications in Theoretical Physics》2016年第4期499-505,共7页理论物理通讯（英文版）

基　　金：Supported by the Natural Science Foundation of China under Grant No.1375001;Ri-Xin Foundation of Beijing University of Technology and by Talents Foundation of Education Department of Beijing

摘　　要：In order to meet the requirement of BBN,the right handed neutrino is added to the singlet Higgs sector in the GNMSSM.The spectrum and Feynman rules are calculated.the dark matter pheonomenology is also studied.In case of λ ~ 0,the singlet sector can give perfect explanation of relic abundance of dark matter and small cosmological structure simulations.The BBN constraints on the light mediator can be easily solved by decaying to the right handed neutrino.When the λ_N is at the order of O(0.1),the mass of the mediator can be constrained to several MeV.

关 键 词：supersymmetry Higgs dark matter astrophysics 

分 类 号：O572.321[理学—粒子物理与原子核物理] P159[理学—物理]