A Common Origin of Neutrino Masses and $R_{D^{(\ast)}}$, $R_{K^{(\ast)}}$ Anomalies

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In this work, we present a solution to the persistent tensions in the decay observables $R_{D^{(\ast)}}$ and $R_{K^{(\ast)}}$ by introducing a $SU(2)_L$ doublet and a $SU(2)_L$ triplet scalar leptoquarks (LQs) that reside at the TeV energy scale.

• Neutrinos that remain massless in the Standard Model receive naturally small masses at one-loop level via the propagation of the same LQs inside the loop.
• Such a common origin of apparently disjoint phenomenological observations is appealing, and we perform a comprehensive analysis of this set-up.
• We identify the minimal Yukawa textures required to accommodate these flavor anomalies and to successfully incorporate neutrino oscillation data while being consistent with all experimental constraints.