Searches for Dark Matter via Mono-W Production in Inert Doublet Model at the LHC  

作　　者：Neng Wan Niu Li Bo Zhang Huan Yang Min-Fu Zhao Mao Song Gang Li and Jian-You Guo 万能;李牛;张波;杨欢;赵敏福;宋昴;李刚;郭建友(Center of Basic Experiment,West Anhui University;School of Physics and Material Science,Anhui University)

机构地区：[1]Center of Basic Experiment, West Anhui University, Lu＇an 237012, China [2]School of Physics and Material Science, Anhui University, Hefei 230039, China

出　　处：《Communications in Theoretical Physics》2018年第5期617-624,共8页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.11205003,11305001,11575002;the Key Research Foundation of Education Ministry of Anhui Province of China under Grant Nos.KJ2017A032,KJ2016A749,KJ2013A260;Natural Science Foundation of West Anhui University under Grant No.WXZR201614

摘　　要：The Inert Doublet Model(IDM) is one of the many beyond Standard Model scenarios with an extended scalar sector, which provide a suitable dark matter particle candidate. Dark matter associated visible particle production at high energy colliders provides a unique way to determine the microscopic properties of the dark matter particle. In this paper, we investigate that the mono-W + missing transverse energy production at the Large Hadron Collider(LHC),where W boson decay to a lepton and a neutrino. We perform the analysis for the signal of mono-W production in the IDM and the Standard Model(SM) backgrounds, and the optimized criteria employing suitable cuts are chosen in kinematic variables to maximize signal significance. We also investigate the discovery potential in several benchmark scenarios at the 14 TeV LHC. When the light Z_2 odd scalar higgs of mass is about 65 GeV, charged Higgs is in the mass range from 120 GeV to 250 GeV, it provides the best possibility with a signal significance of about 3σ at an integrated luminosity of about 3000 fb^(-1).

关 键 词：large hadron collider IDM dark matter 

分 类 号：P145.9[天文地球—天体物理]