A leptoquark model to accommodate RKexp < RKSM and RK*exp < RK*SM

We show that a modification of the model with a low energy scalar leptoquark state carrying hypercharge Y = 7/6 allows to accommodate both R-K < 1 and R-K* < 1, through loop e ff ects, consistent with recent observations made at LHCb. We describe details of the model, compute the relevant Wilson coe ffi cient and, after discussing a number of constraints, we examine the phenomenological consequences of the model. The bounds on the lepton flavor violating decay rates, induced by this model, include B ( Z -> mu tau) less than or similar to O (10(-7)), and B ( B -> K-mu tau) less than or similar to O (10(-9)). We also comment on the interpretation of the bounds on the leptoquark mass obtained from the direct searches at LHC.