Revisiting R-parity violating interactions as an explanation of the B-physics anomalies

In the last few years, the ratios $$ and of $$ have reportedly exhibited significant deviations from the relevant standard model predictions, hinting towards a possible violation of Lepton Flavor Universality and a window to New Physics. We investigate to what extent the inclusion of R-parity violating couplings in the minimal supersymmetric standard model can provide a better fit to the anomalies simultaneously. We perform this analysis employing an approximate, non-abelian $$ flavour symmetry, which features a natural explanation of the appropriate hierarchy of the R-parity violating couplings. We show that, under the requirement of a supersymmetric spectrum with much heavier left-handed doublet superpartners, our assumption favors a considerable enhancement in the tree-level charged-current $$ , while the the anomalies induced by $$ receive up to an approximate $$ improvement. The consistency with all relevant low-energy constraints is assessed.