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题名: LHC Higgs signatures from topflavor seesaw mechanism
作者: Wang, XF ;  Du, C ;  He, HJ
刊名: PHYSICS LETTERS B
出版日期: 2013
卷号: 723, 期号:4-5, 页码:314-323
关键词: ELECTROWEAK SYMMETRY-BREAKING ;  STANDARD MODEL ;  MASSLESS PARTICLES ;  BROKEN SYMMETRIES ;  BOSON ;  NEUTRINO ;  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: [Wang, Xu-Feng; Du, Chun; He, Hong-Jian] Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China; [Wang, Xu-Feng; Du, Chun; He, Hong-Jian] 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] Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
英文摘要: We study LHC Higgs signatures from topflavor seesaw realization of electroweak symmetry breaking with a minimal gauge extension SU(2) circle times SU(2) circle times U(1). This elegant renormalizable construction singles out top quark sector (instead of all other light fermions) to join the new SU(2) gauge force. It predicts extra vector-like spectator quarks (T, B), new gauge bosons (W', Z'), and a pair of neutral Higgs bosons (h, H). We demonstrate that for the lighter Higgs boson h of mass 125 GeV, this model predicts modified Higgs signal rates in h -> gamma gamma, WW*, ZZ* channels via gluon fusions, in h -> tau(tau) over bar mode via vector boson fusions, and in h -> b (b) over bar mode via gauge boson associate productions. We perform a global fit for our theory by including both direct search data (LHC and Tevatron) and indirect precision constraints. We further analyze the LHC discovery potential for detecting the heavier Higgs state H. (C) 2013 Elsevier B.V. All rights reserved.
资助者: National NSF of China [11275101, 11135003]; National Basic Research Program [2010CB833000]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000320745400007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15342
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Wang, XF,Du, C,He, HJ. LHC Higgs signatures from topflavor seesaw mechanism[J]. PHYSICS LETTERS B,2013,723(4-5):314-323.
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