Leptonic decays of D_s and B^+ mesons in supersymmetric standard model with R-parity violating interactions

Abstract

We investigate leptonic decays $D_s\to \tau {\nu }_{\tau }$ and $B^{+}\to \tau {\nu }_{\tau }$ in R-parity violating (RPV) supersymmetric standard model. Taking account of interference between the s-channel slepton exchange and the $t$-channel squark exchange diagrams, we find that the supersymmetric contributions are cancelled between two diagrams so that the RPV couplings could be sizable under the experimental bounds. Constraints on the relative sign between the RPV couplings in $s$- and $t$-channel diagrams are also discussed.

arXiv comment14 pages, 5 figures. Typos corrected. Version to appear in Phys.Rev.D

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Cited by in corpus (4)

• Hints of R-parity violation in B decays into $\tau \nu$
• Constraints on R-parity violating interactions in supersymmetric standard model from leptonic decays of D_s and B^+ mesons
• B -> tau nu: Opening up the Charged Higgs Parameter Space with R-parity Violation
• Study of rare mesonic decays involving di-neutrinos in their final state