2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/203106Recently, 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.4 pages, minor corrections in the nature of clarification, a few references added, version to be published in PRDHigh Energy Physics - Phenomenologytext