English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate leptonic decays $D_s \to \tau \nu_\tau$ and $B^+ \to \tau\nu_\tau$ in R-parity violating (RPV) supersymmetric standard model. Takingaccount of interference between the s-channel slepton exchange and the$t$-channel squark exchange diagrams, we find that the supersymmetriccontributions are cancelled between two diagrams so that the RPV couplingscould be sizable under the experimental bounds. Constraints on the relativesign between the RPV couplings in $s$- and $t$-channel diagrams are alsodiscussed.

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