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Closing in on singlet scalar dark matter: LUX, invisible Higgs decays and gamma-ray lines
Feng, Lei1; Profumo, Stefano2,3; Ubaldi, Lorenzo4
2015-03-10
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号3
摘要We study the implications of the Higgs discovery and of recent results from dark matter searches on real singlet scalar dark matter. The phenomenology of the model is defined by only two parameters, the singlet scalar mass mS and the quartic coupling a(2) between the SU(2) Higgs and the singlet scalar. We concentrate on the window 5 < m(S)/GeV < 300. The most dramatic impact on the viable parameter space of the model comes from direct dark matter searches with LUX, and, for very low masses in the few GeV range, from constraints from the invisible decay width of the Higgs. In the resonant region the best constraints come from gamma-ray line searches. We show that they leave only a small region of viable parameter space, for dark matter masses within a few percent of half the mass of the Higgs. We demonstrate that direct and indirect dark matter searches (especially the search for monochromatic gamma-ray lines) will play a key role in closing the residual parameter space in the near future.
文章类型Article
关键词Beyond Standard Model Higgs Physics CoSmology Of Theories Beyond The Sm
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/JHEP03(2015)045
关键词[WOS]STANDARD MODEL ; LHC ; BOSON
收录类别SCI
语种英语
项目资助者973 Program of China(2013CB837000) ; National Natural Science of China(11303096) ; US Department of Energy(DE-SC0010107-001)
WOS研究方向Physics
WOS类目Physics, Particles & Fields
WOS记录号WOS:000363467000001
引用统计
文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/16027
专题暗物质和空间天文实验室
作者单位1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
2.Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA
3.Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
4.Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel
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Feng, Lei,Profumo, Stefano,Ubaldi, Lorenzo. Closing in on singlet scalar dark matter: LUX, invisible Higgs decays and gamma-ray lines[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015(3).
APA Feng, Lei,Profumo, Stefano,&Ubaldi, Lorenzo.(2015).Closing in on singlet scalar dark matter: LUX, invisible Higgs decays and gamma-ray lines.JOURNAL OF HIGH ENERGY PHYSICS(3).
MLA Feng, Lei,et al."Closing in on singlet scalar dark matter: LUX, invisible Higgs decays and gamma-ray lines".JOURNAL OF HIGH ENERGY PHYSICS .3(2015).
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