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题名: Hunting composite vector resonances at the LHC: naturalness facing data
作者: Greco, D ;  Liu, D
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2014
期号: 12, 页码:126
关键词: PHENOMENOLOGICAL LAGRANGIANS ;  SYMMETRY ;  BREAKING ;  MASSES ;  MODEL
学科分类: Physics
DOI: 10.1007/JHEP12(2014)126
通讯作者: Greco, D (reprint author), Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland.
部门归属: [Greco, Davide
英文摘要: We introduce a simplified low-energy effective Lagrangian description of the phenomenology of heavy vector resonances in the minimal composite Higgs model, based on the coset SO(5)/SO(4), analysing in detail their interaction with lighter top partners. Our construction is based on robust assumptions on the symmetry structure of the theory and on plausible natural assumptions on its dynamics. We apply our simplified approach to triplets in the representations (3, 1) and (1, 3) and to singlets in the representation (1, 1) of SO(4). Our model captures the basic features of their phenomenology in terms of a minimal set of free parameters and can be efficiently used as a benchmark in the search for heavy spin-1 states at the LHC and at future colliders. We devise an efficient semi-analytic method to convert experimental limits on sigma x BR into bounds on the free parameters of the theory and we recast the presently available 8 TeV LHC data on experimental searches of spin-1 resonances as exclusion regions in the parameter space of the models. These latter are conveniently interpreted as a test of the notion of naturalness.
资助者: Swiss National Science Foundation [200020-150060]; China Scholarship Foundation
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000346652500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15535
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Greco, D,Liu, D. Hunting composite vector resonances at the LHC: naturalness facing data[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(12):126.
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