Weakly interacting dark matter and baryogenesis

	Weakly interacting dark matter and baryogenesis
	Gu, PH; Lindner, M; Sarkar, U; Zhang XM(张新民); Zhang, XM
刊名	PHYSICAL REVIEW D
	2011
卷号	83 期号:5 页码:55008
通讯作者	[Gu, Pei-Hong ; Lindner, Manfred] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany ; [Sarkar, Utpal] Phys Res Lab, Ahmadabad 380009, Gujarat, India ; [Zhang, Xinmin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	In the present Universe visible and dark matter contribute comparable energy density although they have different properties. This phenomenon can be explained if the dark matter relic density, originating from a dark matter asymmetry, is fully determined by the baryon asymmetry. Thus the dark matter mass is not arbitrary; rather, it becomes predictive. We realize this scenario in baryon (lepton) number conserving models where two or more neutral singlet scalars decay into two or three baryonic (leptonic) dark matter scalars, and also decay into quarks (leptons) through other on-shell and/or off-shell exotic scalar bilinears. The produced baryon (lepton) asymmetries in the dark matter scalar and in the standard model quarks (leptons) are thus equal and opposite. The dark matter mass can be predicted in a range from a few GeV to a few TeV, depending on the baryon (lepton) numbers of the decaying scalars and the dark matter scalar. The dark matter scalar can interact with the visible matter through the exchange of the standard model Higgs boson, opening a window for the dark matter direct detection experiments. These models also provide testable predictions in the searches for the exotic scalar bilinears at LHC.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]	Astronomy & Astrophysics ; Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000288389300006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240688]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Gu, PH,Lindner, M,Sarkar, U,et al. Weakly interacting dark matter and baryogenesis[J]. PHYSICAL REVIEW D,2011,83(5):55008.
APA	Gu, PH,Lindner, M,Sarkar, U,张新民,&Zhang, XM.(2011).Weakly interacting dark matter and baryogenesis.PHYSICAL REVIEW D,83(5),55008.
MLA	Gu, PH,et al."Weakly interacting dark matter and baryogenesis".PHYSICAL REVIEW D 83.5(2011):55008.