Studying Double Charm Decays of B_{u,d} and B_{s} Mesons in the MSSM with R-parity Violation

Details Studying Double Charm Decays of B_{u,d} and B_{s} Mesons in the MSSM with R-parity Violation Studying Double Charm Decays of B_{u,d} and B_{s} Mesons in the MSSM with R-parity Violation

2008-12-22

arxiv.org/abs/0812.4136v3

Phys.Rev.D79:055004,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages and 6 figures, matches published version

Scientific paper

10.1103/PhysRevD.79.055004

Motivated by the possible large direct CP asymmetry of \bar{B}^0_d \to D^+ D^- decay measured by Belle collaboration, we investigate double charm B_{u,d} and B_s decays in the minimal supersymmetric standard model with R-parity violation. We derive the bounds on relevant R-parity violating couplings from the current experimental data, which show quite consistent measurements among relative collaborations. Using the constrained parameter spaces, we explore R-parity violating effects on other observables in these decays, which have not been measured or have not been well measured yet. We find that the R-parity violating effects on the mixing-induced CP asymmetries of \bar{B}^0_d \to D^{(*)+} D^{(*)-} and \bar{B}^0_s \to D^{(*)+}_s D^{(*)-}_s decays could be very large, nevertheless the R-parity violating effects on the direct CP asymmetries could not be large enough to explain the large direct CP violation of \bar{B}^0_d \to D^{+} D^{-} from Belle. Our results could be used to probe R-parity violating effects and will correlate with searches for direct R-parity violating signals in future experiments.

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