Explanation of BK(*)l+l and muon g2, and implications at the LHC

Chuan-Hung Chen, Takaaki Nomura, and Hiroshi Okada
Phys. Rev. D 94, 115005 – Published 2 December 2016

Abstract

More than 3σ deviations from the standard model are observed in the angular observable P5 of BK*μ+μ and muon g2. To resolve these anomalies, we extend the standard model by adding two leptoquarks. It is found that the signal strength of the diphoton Higgs decay can exhibit a significant deviation from unity and is within the data errors. Although ijγ puts severe bounds on some couplings, it is found that the excesses of P5 and the muon g2 can still be explained and accommodated to the measurement of Bsμ+μ in this model. In addition, the leptoquark effects can also explain the LHCb measurement of RK=BR(B+K+μ+μ)/BR(B+K+e+e)=0.7450.074+0.090±0.036, which shows a 2.6σ deviation from the standard model prediction.

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  • Received 28 July 2016

DOI:https://doi.org/10.1103/PhysRevD.94.115005

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Chuan-Hung Chen1,*, Takaaki Nomura2,†, and Hiroshi Okada3,‡

  • 1Department of Physics, National Cheng-Kung University, Tainan 70101, Taiwan
  • 2School of Physics, KIAS, Seoul 130-722, Korea
  • 3Physics Division, National Center for Theoretical Sciences, Hsinchu 300, Taiwan

  • *physchen@mail.ncku.edu.tw
  • nomura@kias.re.kr
  • macokada3hiroshi@cts.nthu.edu.tw

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Issue

Vol. 94, Iss. 11 — 1 December 2016

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