The rare decays $B^+_u\toπ^+\ell^+\ell^-$, $ρ^+\ell^+\ell^-$ and $B^0_d\to \ell^+\ell^-$ in the R-parity violating supersymmetry

Simple item page
dc.creatorWang, Jian-Jun
dc.creatorWang, Ru-Min
dc.creatorXu, Yuan-Guo
dc.creatorYang, Ya-Dong
dc.date2007-11-02
dc.date.accessioned2026-07-07T11:12:52Z
dc.date.available2026-07-07T11:12:52Z
dc.descriptionWe study the rare decays $B^{+}_u\to π^{+}\ell^{+}\ell^{-}$, $ρ^{+}\ell^{+}\ell^{-}$ and $B^{0}_d \to \ell^{+} \ell^{-}(\ell=e,μ)$ in the R-parity violating supersymmetric standard model. From the latest upper limits of $\mathcal{B}(B^+_u\toπ^+\ell^+\ell^-)$ and $\mathcal{B}(B^0_d\to\ell^+\ell^-)$, we have derived new upper bounds on the relevant R-parity violating couplings products, which are stronger than the existing ones. Using the constrained parameter space, we present the R-parity violating effects on the branching ratios and the forward-backward asymmetries of these decays. We find that $\mathcal{B}(B^0_d\to \ell^+\ell^-)$ and $\mathcal{B}(B^+_u \toρ^+\ell^+\ell^-)$ could be enhanced several orders by the R-parity violating sneutrino and squark exchanges, respectively. The R-parity violating effects on the dilepton invariant mass spectra of $B^+_u\to π^+\ell^+\ell^-$, $ρ^+\ell^+\ell^-$ and the normalized forward-backward asymmetry $\mathcal{A}_{FB}(B^+_u\toπ^+\ell^+\ell^-)$ and $\mathcal{A}_{FB}(B^+_u \toρ^+\ell^+\ell^-)$ are studied in detail. Our results could be used to probe the R-parity violating effects and will correlate with searches for the direct R-parity violating signals at the future experiments.
dc.description27 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0711.0321
dc.identifierhttp://arxiv.org/abs/0711.0321
dc.identifierPhys.Rev.D77:014017,2008
dc.identifierdoi:10.1103/PhysRevD.77.014017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191524
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe rare decays $B^+_u\toπ^+\ell^+\ell^-$, $ρ^+\ell^+\ell^-$ and $B^0_d\to \ell^+\ell^-$ in the R-parity violating supersymmetry
dc.typetext

Files

Collections

arXiv