TY - JOUR
T1 - Study of the exclusive b→ul-ν̄l decays in the MSSM with and without R-parity violation
AU - Kim, C. S.
AU - Wang, Ru Min
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/5/9
Y1 - 2008/5/9
N2 - We study the exclusive b→u-ν̄ (=τ,μ,e) decays in the minimal supersymmetric standard model with and without R-parity violation. From the experimental measurements of branching ratios B(Bu-→τ- ν̄τ), B(Bu-→M′0 ′-ν̄ ′) and B(B̄d0→M′+′-ν̄′) (′=μ,e,M′= π,ρ), we derive new upper bounds on the relevant new physics parameters within the decays. Using the constrained new physics parameter spaces, we predict the charged Higgs effects and the R-parity violating effects on the branching ratios, the normalized forward-backward asymmetries of charged leptons, and the ratios of longitudinal to transverse polarization of the vector mesons, which have not been measured or have not been well measured yet. We find that the charged Higgs effects and the R-parity violating effects could be large and measurable in some cases. Our results could be used to probe new physics effects in the leptonic decays as well as the semileptonic decays, and will correlate with searches for direct supersymmetric signals in future experiments.
AB - We study the exclusive b→u-ν̄ (=τ,μ,e) decays in the minimal supersymmetric standard model with and without R-parity violation. From the experimental measurements of branching ratios B(Bu-→τ- ν̄τ), B(Bu-→M′0 ′-ν̄ ′) and B(B̄d0→M′+′-ν̄′) (′=μ,e,M′= π,ρ), we derive new upper bounds on the relevant new physics parameters within the decays. Using the constrained new physics parameter spaces, we predict the charged Higgs effects and the R-parity violating effects on the branching ratios, the normalized forward-backward asymmetries of charged leptons, and the ratios of longitudinal to transverse polarization of the vector mesons, which have not been measured or have not been well measured yet. We find that the charged Higgs effects and the R-parity violating effects could be large and measurable in some cases. Our results could be used to probe new physics effects in the leptonic decays as well as the semileptonic decays, and will correlate with searches for direct supersymmetric signals in future experiments.
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U2 - 10.1103/PhysRevD.77.094006
DO - 10.1103/PhysRevD.77.094006
M3 - Article
AN - SCOPUS:43449104722
VL - 77
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 9
M1 - 094006
ER -