Natural electroweak symmetry breaking from scale invariant Higgs mechanism

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	Natural electroweak symmetry breaking from scale invariant Higgs mechanism
	Farzinnia, A ; He, HJ ; Ren, J
刊名	PHYSICS LETTERS B
	2013
卷号	727 期号:1-3 页码:141-150
关键词	STANDARD MODEL BOSON MASS WEAK INTERACTIONS GAUGE THEORIES HIGH-ENERGIES UPPER-BOUNDS LHC RENORMALIZATION CONSERVATION SEARCH
ISSN号	0370-2693
通讯作者	He, HJ (reprint author), Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China.
英文摘要	We construct a minimal viable extension of the standard model (SM) with classical scale symmetry. Its scalar sector contains a complex singlet in addition to the SM Higgs doublet. The scale-invariant and CP-symmetric Higgs potential generates radiative electroweak symmetry breaking a la Coleman-Weinberg, and gives a natural solution to the hierarchy problem, free from fine-tuning. Besides the 125 GeV SM-like Higgs particle, it predicts a new CP-even Higgs (serving as the pseudo-Nambu-Goldstone boson of scale symmetry breaking) and a CP-odd scalar singlet (providing the dark matter candidate) at weak scale. We systematically analyze experimental constraints from direct LHC Higgs searches and electroweak precision tests, as well as theoretical bounds from unitarity, triviality and vacuum stability. We demonstrate the viable parameter space, and discuss implications for new Higgs searches at the upcoming LHC runs and the on-going direct detections of dark matter. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	Physics
收录类别	SCI
资助信息	National NSF of China [11275101, 11135003]; National Basic Research Program [2010CB833000]; Tsinghua Outstanding Postdoctoral Fellowship
原文出处	http://dx.doi.org/10.1016/j.physletb.2013.09.060
语种	英语
WOS记录号	WOS:000328518400015
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15249]
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	Farzinnia, A,He, HJ,Ren, J. Natural electroweak symmetry breaking from scale invariant Higgs mechanism[J]. PHYSICS LETTERS B,2013,727(1-3):141-150.
APA	Farzinnia, A,He, HJ,&Ren, J.(2013).Natural electroweak symmetry breaking from scale invariant Higgs mechanism.PHYSICS LETTERS B,727(1-3),141-150.
MLA	Farzinnia, A,et al."Natural electroweak symmetry breaking from scale invariant Higgs mechanism".PHYSICS LETTERS B 727.1-3(2013):141-150.