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题名: Production Cross-Section Estimates for Strongly-Interacting Electroweak-Symmetry Breaking Sector Resonances at Particle Colliders
作者: Dobado, A;  Guo, FK;  Llanes-Estrada, FJ
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2015
卷号: 64, 期号:6, 页码:701-709
关键词: strongly interacting electroweak symmetry breaking sector ;  electroweak resonances ;  ATLAS diboson excess ;  unitarized electroweak chiral Lagrangian
学科分类: Physics
通讯作者: Dobado, A (reprint author), Univ Complutense Madrid, Dept Fis Teor, Plaza Ciencias 1, E-28040 Madrid, Spain.
文章类型: Article
英文摘要: We are exploring a generic strongly-interacting Electroweak Symmetry Breaking Sector (EWSBS) with the low-energy effective field theory for the four experimentally known particles (W-L(+/-), Z(L), h) and its dispersion-relation based unitary extension. In this contribution we provide simple estimates for the production cross-section of pairs of the EWSBS bosons and their resonances at proton-proton colliders as well as in a future e(-)e(+) (or potentially a mu(-)mu(+)) collider with a typical few-TeV energy. We examine the simplest production mechanisms, tree-level production through a W (dominant when quantum numbers allow) and the simple effective boson approximation (in which the electroweak bosons are considered as collinear partons of the colliding fermions). We exemplify with custodial isovector and isotensor resonances at 2 TeV, the energy currently being discussed because of a slight excess in the ATLAS 2-jet data. We find it hard, though not unthinkable, to ascribe this excess to one of these WLWL rescattering resonances. An isovector resonance could be produced at a rate smaller than, but close to earlier CMS exclusion bounds, depending on the parameters of the effective theory. The ZZ excess is then problematic and requires additional physics (such as an additional scalar resonance). The isotensor one (that would describe all charge combinations) has smaller cross-section.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: CHIRAL PERTURBATION-THEORY ;  EQUIVALENCE THEOREM ;  LAGRANGIANS ;  SCATTERING ;  BOSONS
收录类别: SCI
项目资助者: Spanish Excellence Network on Hadronic Physics [FIS2014-57026-REDT] ;  Spanish Grants Universidad Complutense [UCM:910309] ;  Ministerio de Economia y Competitividad [MINECO:FPA2011-27853-C02-01, MINECO:FPA2014-53375-C2-1-P] ;  Deutsche Forschungsgemeinschaft ;  National Natural Science Foundation of China (NSFC) [11261130311, 11165005]
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20761
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Recommended Citation:
Dobado, A,Guo, FK,Llanes-Estrada, FJ. Production Cross-Section Estimates for Strongly-Interacting Electroweak-Symmetry Breaking Sector Resonances at Particle Colliders[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2015,64(6):701-709.
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文件名: Production Cross-Section Estimates for Strongly-Interacting Electroweak-Symmetry Breaking Sector Resonances at Particle Colliders.pdf
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