ITP OpenIR  > 理论物理所科研产出  > SCI论文
Huang, WC; Shu, J; Zhang, Y; Huang, WC (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
On the Higgs fit and electroweak phase transition
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordStandard Model Boson Baryogenesis Lhc
AbstractWe consider the Higgs portal through which light scalars contribute both to the Higgs production and decay and Higgs effective potential at finite temperature via quantum loops. The positive Higgs portal coupling required by a strongly first order electroweak phase transition is disfavored by the current Higgs data if we consider one such scalar. We observe that by introducing a second scalar with negative Higgs portal coupling, one can not only improve the Higgs fits, but also enhance the strength of first order EWPT. We apply this mechanism to the light stop scenario for electroweak baryogenesis in the MSSM and find a light sbottom could play the role as the second scalar, which allows the stop to be relatively heavier. Non-decoupled effects on the Higgs or sbottom self-interactions from physics beyond MSSM are found to be indispensable for this scenario to work. A clear prediction from the picture is the existence of a light sbottom (below 200 GeV) and a light stop (can be as heavy as 140 GeV), which can be directly tested in the near future.
2013
ISSN1029-8479
Issue3Pages:164
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15406
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHuang, WC (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Huang, WC,Shu, J,Zhang, Y,et al. On the Higgs fit and electroweak phase transition[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(3):164.
APA Huang, WC,Shu, J,Zhang, Y,&Huang, WC .(2013).On the Higgs fit and electroweak phase transition.JOURNAL OF HIGH ENERGY PHYSICS(3),164.
MLA Huang, WC,et al."On the Higgs fit and electroweak phase transition".JOURNAL OF HIGH ENERGY PHYSICS .3(2013):164.
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