Large enhancement of D -> e nu and Ds -> e nu in R Parity violating SUSY models

Abstract

The purely leptonic decays D -> e nu and Ds -> e nu, for which no experimental limits exist, are highly suppressed in the Standard Model. Mere observation of these decays at the B factories BELLE/BaBar or forthcoming CLEO-c would be a clear signal of physics beyond the SM. We show that R parity violating slepton contributions can give rise to spectacular enhancements of the decay rates, resulting in branching ratios as large as 5 x 10^-3, which strongly motivates a search in these channels.

10 pages, 4 figures

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Cited by in corpus (18)

• Phenomenological constraints on broken R parity symmetry in supersymmetry models
• Improved Measurement of cal{B}(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_{D^+}
• $D^0-\overline{D^0}$ Mixing and Rare Charm Decays
• Precision Measurement of B(D+ -> mu+ nu) and the Pseudoscalar Decay Constant fD+
• Accumulating evidence for nonstandard leptonic decays of D_s mesons
• Measurement of the Pseudoscalar Decay Constant fDs Using Ds+ -> tau+ nu, tau+ -> rho+ anti-nu Decays
• Constraints on charged Higgs bosons from D(s)+- -> mu+- nu and D(s)+- -> tau+- nu
• Measuring cal B(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_D^+
• Measurement of the $D_s^{+}\to {\ell }^{+}{\nu }_{\ell }$ branching fractions and the decay constant $f_{D_s^{+}}$
• |V_{cd}|, |V_{cs}| and f_{D_s} from (semi) leptonic $D_{(s)}$-decays : signals of New Physics ?
• Testing Lepton Flavour Universality with (Semi)-Leptonic $D_{(s)}$ Decays
• Leptoquark on $P\to {\ell }^{+}\nu$, FCNC and LFV
• Constraining New Physics with D meson decays
• Correlated enhancements in $D_s\to \ell \nu$, $(g-2)$ of muon, and lepton flavor violating $\tau$ decays with two R-parity violating couplings
• Probing the R-parity violating supersymmetric effects in the exclusive $c\to d/s\ell {\nu }_{\ell }$ decays
• Can Flavor Physics Hint at Distinctive Signals for R-parity Violation at the LHC?
• Rare Charm Decays
• Search for the leptonic decays $D^{\ast +}\to e^{+}{\nu }_e$ and $D^{\ast +}\to {\mu }^{+}{\nu }_{\mu }$