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Farzinnia, A; He, HJ; Ren, J; He, HJ (reprint author), Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China.
Natural electroweak symmetry breaking from scale invariant Higgs mechanism
Source PublicationPHYSICS LETTERS B
Language英语
KeywordStandard Model Boson Mass Weak Interactions Gauge Theories High-energies Upper-bounds Lhc Renormalization Conservation Search
AbstractWe 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.
2013
ISSN0370-2693
Volume727Issue:1-3Pages:141-150
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational NSF of China [11275101, 11135003]; National Basic Research Program [2010CB833000]; Tsinghua Outstanding Postdoctoral Fellowship ; National NSF of China [11275101, 11135003]; National Basic Research Program [2010CB833000]; Tsinghua Outstanding Postdoctoral Fellowship ; National NSF of China [11275101, 11135003]; National Basic Research Program [2010CB833000]; Tsinghua Outstanding Postdoctoral Fellowship ; National NSF of China [11275101, 11135003]; National Basic Research Program [2010CB833000]; Tsinghua Outstanding Postdoctoral Fellowship
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15249
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHe, HJ (reprint author), Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China.
Recommended Citation
GB/T 7714
Farzinnia, A,He, HJ,Ren, J,et al. 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,&He, HJ .(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.
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