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题名: One loop renormalization of the electroweak chiral Lagrangian with a light Higgs boson
作者: Guo, FK;  Ruiz-Femenia, P;  Sanz-Cillero, JJ
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 92, 期号:7, 页码:74005
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.92.074005
通讯作者: Guo, FK (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
文章类型: Article
英文摘要: We consider the general chiral effective action which parametrizes the nonlinear realization of the spontaneous breaking of the electroweak symmetry with a light Higgs boson and compute the one-loop ultraviolet divergences coming from Higgs and electroweak Goldstone fluctuations using the background field method. The renormalization of the divergences is carried out through operators of next-to-leading order in the chiral counting, i.e., of O(p(4)). Being of the same order in power counting, the logarithmic corrections linked to these divergences can be as important as the tree-level contributions from the O(p(4)) operators and must be accounted for in the phenomenological analysis of experimental data. Deviations in the O(p(2)) (leading-order) couplings with respect to the Standard Model values, e.g., in the h -> WW coupling, would generate contributions from the one-loop chiral logarithms computed in this work to a vast variety of observables, which do not have a counterpart in the conventional electroweak effective theory with a linearly transforming Higgs complex doublet.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: PHENOMENOLOGICAL LAGRANGIANS ;  HEAVY HIGGS ;  PERTURBATION-THEORY ;  MODEL ;  ALGORITHM ;  QUARK ;  FIELD
收录类别: SCI
项目资助者: NSFC [11165005] ;  DFG [CRC 110, 11261130311] ;  ERDF funds from the European Commission [FPA2010-17747, FPA2013-44773-P, SEV-2012-0249, CSD2007-00042] ;  Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence "Origin and Structure of the Universe"
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20839
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Guo, FK,Ruiz-Femenia, P,Sanz-Cillero, JJ. One loop renormalization of the electroweak chiral Lagrangian with a light Higgs boson[J]. PHYSICAL REVIEW D,2015,92(7):74005.
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