Probing R-parity violating supersymmetric effects in the exclusive bcν¯ decays

Ru-Min Wang, Jie Zhu, Hua-Min Gan, Ying-Ying Fan, Qin Chang, and Yuan-Guo Xu
Phys. Rev. D 93, 094023 – Published 23 May 2016

Abstract

Motivated by recent results from the LHCb, BABAR, and Belle Collaborations on BD(*)ν¯ decays, which significantly deviate from the Standard Model and hint at the possible new physics beyond the Standard Model, we probe the R-parity violating supersymmetric effects in Bcν¯ and BD(*)ν¯ decays. We find the following: (i) B(Bceν¯e) and B(Bcμν¯μ) are sensitive to the constrained slepton exchange couplings. (ii) The normalized forward-backward asymmetries of BDeν¯e decays have been greatly affected by the constrained slepton exchange couplings, and their signs could be changed. (iii) All relevant observables in the exclusive bcτν¯τ decays and ratios R(D(*)) are sensitive to the slepton exchange coupling, and R(D*) could be enhanced by the constrained slepton exchange coupling to reach each 95% confidence level experimental ranges from BABAR, Belle, and LHCb but not the lower limit of the 95% confidence level experimental average. Our results in this work could be used to probe R-parity violating effects and will correlate with searches for direct supersymmetric signals at the running LHCb and the forthcoming Belle-II.

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  • Received 2 March 2016

DOI:https://doi.org/10.1103/PhysRevD.93.094023

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Ru-Min Wang1,*, Jie Zhu1,2, Hua-Min Gan1, Ying-Ying Fan1, Qin Chang2, and Yuan-Guo Xu1,†

  • 1Institute of Theoretical Physics, Xinyang Normal University, Xinyang, Henan 464000, China
  • 2Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang, Henan 453007, China

  • *ruminwang@sina.com
  • yuanguoxv@163.com

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Vol. 93, Iss. 9 — 1 May 2016

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