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题名: Electroweak baryogenesis in the MSSM with vectorlike superfields
作者: Chang, X ;  Huo, R
刊名: PHYSICAL REVIEW D
出版日期: 2014
卷号: 89, 期号:3, 页码:36005
关键词: MODEL CP-VIOLATION ;  NUMBER NON-CONSERVATION ;  STANDARD MODEL ;  BARYON ASYMMETRY ;  FINITE-TEMPERATURE ;  PHASE-TRANSITION ;  LEADING ORDER ;  UNIVERSE ;  MASS ;  FERMIONS
学科分类: Physics
DOI: 10.1103/PhysRevD.89.036005
通讯作者: Chang, X (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
部门归属: [Chang, Xue] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Huo, Ran] Univ Tokyo, Kavli IPMU WPI, Kashiwa, Chiba 2778583, Japan
英文摘要: Introducing heavy particles with strong couplings to the Higgs field can strengthen electroweak phase transition through the entropy release mechanism from both bosons and fermions. We analyze the possibility of electroweak baryogenesis in the minimal supersymmetric Standard Model (MSSM) with new vectorlike superfields. The new vectorlike particles belong to the representation 5 + (5) over bar + 10 + (10) over bar of SU (5). By analyzing in detail the effective potential at finite temperature, we show that a strongly first-order electroweak phase transition in this model is ruled out by a combination of the 125 GeV Higgs requirement, the bound for exotic quarks, the gluon fusion Higgs production rate, and the Higgs diphoton decay rate, as well as the electroweak precision measurement.
资助者: National Natural Science Foundation of China [11375248, 10821504]; National Basic Research Program of China [2010CB833000]; World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000332160500006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15476
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Chang, X,Huo, R. Electroweak baryogenesis in the MSSM with vectorlike superfields[J]. PHYSICAL REVIEW D,2014,89(3):36005.
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