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题名: Effective Field Theory Approach to b -> sll((1)), B -> K-(*) nu(nu)over-bar and B -> D(*)tau nu with Third Generation Couplings
作者: Calibbi, L;  Crivellin, A;  Ota, T
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2015
卷号: 115, 期号:18, 页码:181801
学科分类: Physics
DOI: http://dx.doi.org/10.1103/PhysRevLett.115.181801
通讯作者: Calibbi, L (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: The LHCb Collaboration reported anomalies in B -> K*mu(+)mu(-), B-s -> phi mu(+)mu(-), and R(K) = B -> K mu(+)mu(-)/B -> Ke(+)e(-). Furthermore, BABAR, BELLE, and LHCb Collaborations found hints for the violation of lepton-flavor universality violation in R(D-(*)) = B -> D-(*) t nu/B -> D-(*) l nu. In this Letter we reexamine these decays and their correlations to B -> K-(*) nu(nu) over bar using gauge invariant dim-6 operators. For the numerical analysis we focus on scenarios in which new physics couples, in the interaction eigenbasis, to third generation quarks and lepton only. We conclude that such a setup can explain the b -> s mu(+)mu-data simultaneously with R(D-(*)) for small mixing angles in the lepton sector (of the order of pi/16) and very small mixing angles in the quark sector (smaller than V-cb). In these regions of parameter space, B -> K-(*)tau mu and B-s -> tau mu can be order 10(-6). Possible UV completions are briefly discussed.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: STANDARD MODEL ;  LHC ;  BOSON
收录类别: SCI
项目资助者: Marie Curie Intra-European Fellowship of the European Community [PIEF-GA-2012-326948] ;  Japan Society for the Promotion of Science under KAKENHI [26105503] ;  Munich Institute for Astro- and Particle Physics
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20813
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Calibbi, L,Crivellin, A,Ota, T. Effective Field Theory Approach to b -> sll((1)), B -> K-(*) nu(nu)over-bar and B -> D(*)tau nu with Third Generation Couplings[J]. PHYSICAL REVIEW LETTERS,2015,115(18):181801.
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文件名: Effective Field Theory Approach to b - sll((1)), B - K- nu(nu)over-bar and B - Dtau nu with Third Generation Couplings.pdf
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