Study Majorana Neutrino Contribution to B-meson Semi-leptonic Rare Decays

Abstract

B meson semi-leptonic rare decays are sensitive to new physics beyond standard model. We study the $B^{-}\to {\pi }^{-}{\mu }^{+}{\mu }^{-}$ process and investigate the Majorana neutrino contribution to its decay width. The constraints on the Majorana neutrino mass and mixing parameter are obtained from this decay channel with the latest LHCb data. Utilizing the best fit for the parameters, we study the lepton number violating decay $B^{-}\to {\pi }^{+}{\mu }^{-}{\mu }^{-}$, and find its branching ratio is about $6.4\times 10^{-10}$, which is consistent with the LHCb data reported recently.

10 pages, 3 figures

References in corpus (6)

• Search for Majorana neutrinos in $B^{-}\to {\pi }^{+}{\mu }^{-}{\mu }^{-}$ decays
• Lepton Number Violation and W' Chiral Couplings at the LHC
• Correlative signatures of heavy Majorana neutrinos and doubly-charged Higgs bosons at the Large Hadron Collider
• Lepton-Number Violating Decays of Heavy Mesons
• The rare decays $B_u^{+}\to {\pi }^{+}{\ell }^{+}{\ell }^{-}$, ${\rho }^{+}{\ell }^{+}{\ell }^{-}$ and $B_d^0\to {\ell }^{+}{\ell }^{-}$ in the R-parity violating supersymmetry
• A study on the radiative dileptonic decays $B^0(B_s)\to \gamma {\ell }^{+}{\ell }^{-}$

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• Monojet search for heavy neutrinos at future $Z$-factories
• Majorana neutrinos with effective interactions in B decays
• The study of two quasi-degenerate heavy sterile neutrinos in rare meson decays
• Probing Sterile Neutrino via Lepton Flavor Violating Decays of Mesons