Right-handed neutrino operators constrained by charm data are predicted to shift the lepton polarization asymmetry and convexity in B_c -> B_s mu nu away from the Standard Model, offering a way to distinguish new physics scenarios.
However, the differential branching frac- tion and forward-backward asymmetry do not show any significant deviation from the SM
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New Physics effects with right-handed neutrinos in semileptonic decay $B_c^+ \to B_s \mu^+ \nu_{\mu}$
Right-handed neutrino operators constrained by charm data are predicted to shift the lepton polarization asymmetry and convexity in B_c -> B_s mu nu away from the Standard Model, offering a way to distinguish new physics scenarios.