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Double type-II seesaw scenario, baryon asymmetry, and dark matter for cosmic e(+/-) excesses
Gu, PH; He, HJ; Sarkar, U; Zhang XM(张新民); Zhang, XM
2009
发表期刊PHYSICAL REVIEW D
卷号80期号:5页码:53004
通讯作者[Gu, Pei-Hong] Abdus Salam Int Ctr Theoret Phys, I-34014 Trieste, Italy ; [He, Hong-Jian] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China ; [Sarkar, Utpal] Phys Res Lab, Ahmadabad 380009, Gujarat, India ; [Sarkar, Utpal] Washington Univ, Dept Phys, St Louis, MO 63130 USA ; [Sarkar, Utpal] Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA ; [Zhang, Xinmin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要We construct a new realization of type-II seesaw for neutrino masses and baryon asymmetry by extending the standard model with one light and two heavy singlet scalars besides one Higgs triplet. The heavy singlets pick up small vacuum expectation values to give a suppressed trilinear coupling between the triplet and doublet Higgs bosons after the light singlet drives the spontaneous breaking of lepton number. The Higgs triplet can thus remain light and be accessible at the LHC. The lepton-number conserving decays of the heavy singlets can generate a lepton asymmetry stored in the Higgs triplet to account for the matter-antimatter asymmetry in the Universe. We further introduce stable gauge bosons from a hidden sector, which obtain masses and annihilate into the Higgs triplet after spontaneous breaking of the associated non-Abelian gauge symmetry. With Breit-Wigner enhancement, the stable gauge bosons can simultaneously explain the relic density of dark matter and the cosmic positron/electron excesses.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.80.053004
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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:000270384900027
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被引频次:24[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/311005/240651
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,He, HJ,Sarkar, U,et al. Double type-II seesaw scenario, baryon asymmetry, and dark matter for cosmic e(+/-) excesses[J]. PHYSICAL REVIEW D,2009,80(5):53004.
APA Gu, PH,He, HJ,Sarkar, U,张新民,&Zhang, XM.(2009).Double type-II seesaw scenario, baryon asymmetry, and dark matter for cosmic e(+/-) excesses.PHYSICAL REVIEW D,80(5),53004.
MLA Gu, PH,et al."Double type-II seesaw scenario, baryon asymmetry, and dark matter for cosmic e(+/-) excesses".PHYSICAL REVIEW D 80.5(2009):53004.
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