Rare decays B{sub u}{sup +}{yields}{pi}{sup +}l{sup +}l{sup -}, {rho}{sup +}l{sup +}l{sup -} and B{sub d}{sup 0}{yields}l{sup +}l{sup -} in the R-parity violating supersymmetry

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.014017· OSTI ID:21035700

Jianjun, Wang ^[1]; Rumin, Wang ^[2]; Yuanguo, Xu; Yadong, Yang ^[1]

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1. Institute of Particle Physics, Huazhong Normal University, Wuhan, Hubei 430079 (China)
2. Department of Physics, Yonsei University, Seoul 120-479 (Korea, Republic of)

We study the rare decays B{sub u}{sup +}{yields}{pi}{sup +}l{sup +}l{sup -}, {rho}{sup +}l{sup +}l{sup -} and B{sub d}{sup 0}{yields}l{sup +}l{sup -} (l=e, {mu}) in the R-parity violating supersymmetric standard model. From the latest upper limits of B(B{sub u}{sup +}{yields}{pi}{sup +}l{sup +}l{sup -}) and B(B{sub d}{sup 0}{yields}l{sup +}l{sup -}), we have derived new upper bounds on the relevant R-parity violating couplings products, which are stronger than the existing ones. Using the constrained parameter space, we present the R-parity violating effects on the branching ratios and the forward-backward asymmetries of these decays. We find that B(B{sub d}{sup 0}{yields}l{sup +}l{sup -}) and B(B{sub u}{sup +}{yields}{rho}{sup +}l{sup +}l{sup -}) could be enhanced several orders by the R-parity violating sneutrino and squark exchanges, respectively. The R-parity violating effects on the dilepton invariant mass spectra of B{sub u}{sup +}{yields}{pi}{sup +}l{sup +}l{sup -}, {rho}{sup +}l{sup +}l{sup -} and the normalized forward-backward asymmetry A{sub FB}(B{sub u}{sup +}{yields}{pi}{sup +}l{sup +}l{sup -}) and A{sub FB}(B{sub u}{sup +}{yields}{rho}{sup +}l{sup +}l{sup -}) are studied in detail. Our results could be used to probe the R-parity violating effects and will correlate with searches for the direct R-parity violating signals at the future experiments.

• OSTI ID: 21035700
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 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
LEPTONS
MASS SPECTRA
PARITY
PIONS NEUTRAL
PIONS PLUS
RHO-770 MESONS
STANDARD MODEL
SUPERSYMMETRY