Right-handed interactions in puzzling $B$-decays

Abstract

We explain the difference between the measured decay widths of $b\to c\tau \nu$ processes and of $B\to K\nu \bar{\nu }$ and their values predicted in the Standard Model by introducing the right-handed interactions both to quarks and to leptons. At low energy scales, in addition to the Standard Model particles, we assume the presence of an additional neutral lepton (right-handed neutrino). We then show a specific realization of such a scenario in a model with a single scalar leptoquark ($S_1$), and discuss the corresponding phenomenology.

5 pages, 2 figures, 2 tables, v2: added appendices, matches published version

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Cited by in corpus (4)

• Impact of new invisible particles on $B\to K^{(\ast )}{E}_{\mathrm{miss}}$ observables
• On the EFT validity for Drell-Yan tails at the LHC
• Resonant ALP-Portal Dark Matter Annihilation as a Solution to the $B^{\pm }\to K^{\pm }\nu \bar{\nu }$ Excess
• Dark Matter emission at Belle II and NA62 in Minimal Flavor Violation framework