The same leptoquarks that explain the recently observed anomaly in $R_K$ can generate naturally small Majorana neutrino masses at one-loop level through mixing with the standard model Higgs. This is particularly relevant in models with at least two leptoquarks contributing to $b\to sll$ transitions.

• Received 30 October 2015

DOI:https://doi.org/10.1103/PhysRevD.92.114025