New insights in the electroweak phase transition in the NMSSM

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	New insights in the electroweak phase transition in the NMSSM
	Huang, WC; Kang, ZF; Shu, J; Wu, PW; Yang, JM
刊名	PHYSICAL REVIEW D
	2015
卷号	91 期号:2 页码:25006
通讯作者	Huang, WC (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	We perform a detailed semianalytical analysis of the electroweak phase transition (EWPT) property in the Next-to-Minimal Supersymmetric standard model, which serves as a good benchmark model in which the 126 GeV Higgs mixes with a singlet. In this case, a strongly first-order electroweak phase transition (SFOEWPT) is achieved by the tree-level effects, and the phase transition strength gamma(c) is determined by the vacua energy gap at T = 0. We make an anatomy of the energy gap at both tree level and loop level and extract out a dimensionless phase transition parameter R-kappa equivalent to 4 kappa v(s)/A(kappa), which can replace A(kappa) in the parameterization and affect the light CP-odd/even Higgs spectra. We find that SFOEWPT only occurs in R-kappa similar to -1 and positive R-kappa less than or similar to O(10), which in the non-PQ limit case would prefer either a relatively light CP-odd or CP-even Higgs boson similar to(60, 100) GeV, and therefore serves as a smoking gun signal and requires new search strategies at the LHC.
学科主题	Astronomy & Astrophysics ; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
关键词[WOS]	STANDARD MODEL ; SUPERSYMMETRIC MODEL ; HIGGS MASSES ; BARYOGENESIS ; SPARTICLE ; SINGLET
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21116]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Huang, WC,Kang, ZF,Shu, J,et al. New insights in the electroweak phase transition in the NMSSM[J]. PHYSICAL REVIEW D,2015,91(2):25006.
APA	Huang, WC,Kang, ZF,Shu, J,Wu, PW,&Yang, JM.(2015).New insights in the electroweak phase transition in the NMSSM.PHYSICAL REVIEW D,91(2),25006.
MLA	Huang, WC,et al."New insights in the electroweak phase transition in the NMSSM".PHYSICAL REVIEW D 91.2(2015):25006.