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Weakly interacting dark matter and baryogenesis
Gu, PH; Lindner, M; Sarkar, U; Zhang XM(张新民); Zhang, XM
2011
发表期刊PHYSICAL REVIEW D
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
文章类型Article
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.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.83.055008
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000288389300006
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被引频次:49[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240688
专题理论物理室
作者单位中国科学院高能物理研究所
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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.
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