R-parity violating supersymmetry, B_s mixing, and D_s -> l nu

TL;DR

This paper proposes that a minimal set of R-parity violating couplings can simultaneously explain the observed anomalies in B_s mixing phase and D_s leptonic decay widths, suggesting new physics beyond the Standard Model.

Contribution

It introduces a minimal R-parity violating framework that accounts for both B_s mixing phase and D_s decay anomalies, linking them through specific couplings.

Findings

R-parity violating couplings can explain B_s mixing anomalies

The same couplings account for enhanced D_s decay widths

Implications for other phenomenological observations

Abstract

Recently, it was pointed out that the mixing phase in the Bs-Bsbar system is large, contrary to the expectations in the Standard Model as well as in minimal flavour violation models. The leptonic decay widths of the D_s meson are also found to be larger than expected. We show how a minimal set of four R-parity violating lambda-prime type couplings can explain both these anomalies. We also point out other phenomenological implications of such new physics.