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题名: Natural electroweak symmetry breaking from scale invariant Higgs mechanism
作者: Farzinnia, A ;  He, HJ ;  Ren, J
刊名: PHYSICS LETTERS B
出版日期: 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
学科分类: Physics
通讯作者: He, HJ (reprint author), Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China.
部门归属: [Farzinnia, Arsham; He, Hong-Jian; Ren, Jing] Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China; [Farzinnia, Arsham; He, Hong-Jian; Ren, Jing] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China; [He, Hong-Jian] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [He, Hong-Jian] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, 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.
资助者: National NSF of China [11275101, 11135003]; National Basic Research Program [2010CB833000]; Tsinghua Outstanding Postdoctoral Fellowship
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000328518400015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15249
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
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.
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