Studying Exclusive Semi-leptonic $b\to (s,d)\nu \bar{\nu }$ Decays in the MSSM without R-parity

Abstract

We present a complete study of R-parity violating supersymmetric effects in thirteen exclusive and inclusive semi-leptonic $b\to (s,d)\nu \bar{\nu }$ decays, including $B_u^{+}\to K^{(\ast )+}\nu \bar{\nu }$, $B_d^0\to K^{(\ast )0}\nu \bar{\nu }$, $B_s^0\to \varphi \nu \bar{\nu }$, $B_d^0\to {\pi }^0({\rho }^0)\nu \bar{\nu }$, $B_u^{+}\to {\pi }^{+}({\rho }^{+})\nu \bar{\nu }$, $B_s^0\to K^{(\ast )0}\nu \bar{\nu }$ and $B\to X_{s,d}\nu \bar{\nu }$ decay modes, and we find those thirteen modes are very sensitive to the constrained R-parity violating couplings. We derive stringent bounds on relevant R-parity violating couplings, which are based on all existent experimental upper limits of involved semi-leptonic decays. In addition, we also investigate the sensitivities of the branching ratios and di-neutrino invariant mass spectra to the survived R-parity violating coupling spaces. Since the experimental bounds would become much better soon through Super-B, we expect that future experiments will greatly strengthen our bounds.

17 pages, 4 figures, inclusive decays considered, references added

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Cited by in corpus (5)

• Comprehensive Analysis on Lepton Flavor Violating Higgs Boson to mu tau Decay in Supersymmetry without R Parity
• Probing the R-parity violating supersymmetric effects in the exclusive b\to c\ell^-\barν_\ell decays
• Light dark matter, rare $B$ decays with missing energy in $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Constraints on R-parity violating interactions in supersymmetric standard model from leptonic decays of D_s and B^+ mesons
• Rare decays B\to Mν\barν in the TC2 model and the LHT model