Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-04-02
Phys.Lett.B681:44-51,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 4 figures, inclusive decays considered, references added
Scientific paper
10.1016/j.physletb.2009.09.054
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 $B^+_u\to K^{(*)+}\nu\bar{\nu}$, $B^0_d\to K^{(*)0}\nu\bar{\nu}$, $B^0_s\to \phi\nu\bar{\nu}$, $B^0_d\to \pi^0(\rho^0)\nu\bar{\nu}$, $B^+_u\to \pi^+(\rho^+)\nu\bar{\nu}$, $B^0_s\to K^{(*)0}\nu\bar{\nu}$ 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.
Kim Chang Sub
Wang Ru-Min
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