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题名: Impact of a CP-Violating Higgs Sector: From LHC to Baryogenesis
作者: Shu, J ;  Zhang, Y
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2013
卷号: 111, 期号:9, 页码:91801
关键词: ELECTRIC-DIPOLE MOMENT ;  ELECTROWEAK BARYOGENESIS ;  NEUTRON ;  BOSON ;  MODEL
学科分类: Physics
通讯作者: Shu, J (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Shu, Jing] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Shu, Jing] Chinese Acad Sci, Inst Theoret Phys, KITPC, Beijing 100190, Peoples R China; [Zhang, Yue] CALTECH, Pasadena, CA 91125 USA
英文摘要: We observe a generic connection between LHC Higgs data and electroweak baryogenesis: the particle that contributes to the CP-odd hgg or h gamma gamma vertex would provide the CP-violating source during a first-order phase transition. It is illustrated in the two Higgs doublet model that a common complex phase controls the lightest Higgs properties at the LHC, electric dipole moments, and the CP-violating source for electroweak baryogenesis. We perform a general parametrization of Higgs effective couplings and a global fit to the LHC Higgs data. Current LHC measurements prefer a nonzero phase for tan beta less than or similar to 1 and electric dipole moment constraints still allow an order-one phase for tan beta similar to 1, which gives sufficient room to generate the correct cosmic baryon asymmetry. We also give some prospects in the direct measurements of CP violation in the Higgs sector at the LHC.
资助者: Gordon and Betty Moore Foundation [776]; U.S. DOE [DE-FG02-92ER40701]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000323610800008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15292
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Shu, J,Zhang, Y. Impact of a CP-Violating Higgs Sector: From LHC to Baryogenesis[J]. PHYSICAL REVIEW LETTERS,2013,111(9):91801.
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