Study of the exclusive b{yields}ul{sup -}{nu}{sub l} decays in the MSSM with and without R-parity violation

Journal Article · Thu May 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.094006· OSTI ID:21250112

Kim, C S; Rumin, Wang ^[1]

---

1. Department of Physics, Yonsei University, Seoul 120-479 (Korea, Republic of)

We study the exclusive b{yields}ul{sup -}{nu}{sub l}(l={tau},{mu},e) decays in the minimal supersymmetric standard model with and without R-parity violation. From the experimental measurements of branching ratios B(B{sub u}{sup -}{yields}{tau}{sup -}{nu}{sub {tau}}), B(B{sub u}{sup -}{yields}M{sup '0}l{sup '-}{nu}{sub l{sup '}}) and B(B{sub d}{sup 0}{yields}M{sup '+}l{sup '-}{nu}{sub l{sup '}}) (l{sup '}={mu},e,M{sup '}={pi},{rho}), 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.

• OSTI ID: 21250112
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
BRANCHING RATIO
HIGGS MODEL
LEPTONIC DECAY
PARITY
POLARIZATION
SEMILEPTONIC DECAY
STANDARD MODEL
SUPERSYMMETRY
TAU NEUTRINOS
VECTOR MESONS