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Li, T; Zhou, YF; Li, T (reprint author), Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Strongly first order phase transition in the singlet fermionic dark matter model after LUX
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordWeinberg-salam Theory Real Higgs Singlet Standard-model Electroweak Baryogenesis Finite Temperature Baryon Asymmetry Early Universe Boson Lhc Search
AbstractWe investigate an extension of the standard model (SM) with a singlet fermionic dark matter (DM) particle which interacts with the SM sector through a real singlet scalar. The presence of a new scalar provides the possibility of generating a strongly first order phase transition needed for electroweak baryogenesis. Taking into account the latest Higgs search results at the LHC and the upper limits from the DM direct detection experiments especially that from the LUX experiment, and combining the constraints from the LEP experiment and the electroweak precision test, we explore the parameter space of this model which can lead to the strongly first order phase transition. Both the tree- and loop-level barriers are included in the calculations. We find that the allowed mass of the second Higgs particle is in the range similar to 30-350GeV. The allowed mixing angle a between the SM-like Higgs particle and the second Higgs particle is constrained to alpha <= 28 degrees. The DM particle mass is predicted to be in the range similar to 15-350GeV. The future XENON1T experiment can rule out a significant proportion of the parameter space of this model. The constraint can be relaxed only when the mass of the SM-like Higgs particle is degenerate with that of the second Higgs particle, or the mixing angle is small enough.
2014
ISSN1029-8479
Issue7Pages:6
Subject AreaPhysics
DOI10.1007/JHEP07(2014)006
Indexed BySCI
Funding OrganizationNational Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084, 11335012]; Project of Knowledge Innovation Program (PKIP) of the Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084, 11335012]; Project of Knowledge Innovation Program (PKIP) of the Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084, 11335012]; Project of Knowledge Innovation Program (PKIP) of the Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084, 11335012]; Project of Knowledge Innovation Program (PKIP) of the Chinese Academy of Science
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15722
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, T (reprint author), Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Li, T,Zhou, YF,Li, T . Strongly first order phase transition in the singlet fermionic dark matter model after LUX[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(7):6.
APA Li, T,Zhou, YF,&Li, T .(2014).Strongly first order phase transition in the singlet fermionic dark matter model after LUX.JOURNAL OF HIGH ENERGY PHYSICS(7),6.
MLA Li, T,et al."Strongly first order phase transition in the singlet fermionic dark matter model after LUX".JOURNAL OF HIGH ENERGY PHYSICS .7(2014):6.
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