Probe R-parity violating supersymmetry effects in B{yields}K{sup (*)}l{sup +}l{sup -} and B{sub s}{yields}l{sup +}l{sup -} decays

Journal Article · Fri Dec 01 04:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.114019· OSTI ID:20868099

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

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1. Department of Physics, Henan Normal University, XinXiang, Henan 453007 (China)

We study the decays B{yields}K{sup (*)}l{sup +}l{sup -} and B{sub s}{yields}l{sup +}l{sup -}(l=e,{mu}) in the minimal supersymmetric standard model with R-parity violation (RPV). From the recent measurements of B(B{yields}K{sup (*)}l{sup +}l{sup -}) and the upper limits of B(B{sub s}{yields}l{sup +}l{sup -}), we have derived new upper bounds on the relevant RPV coupling products, which are stronger than the existing ones. Using the constrained parameter space, we predict the RPV effects on the forward-backward asymmetries A{sub FB}(B{yields}K{sup (*)}l{sup +}l{sup -}) and the branching ratios B(B{sub s}{yields}l{sup +}l{sup -}). Our results of the forward-backward asymmetries agree with the recent experiment data. It is also found that B(B{sub s}{yields}l{sup +}l{sup -}) could be enhanced several orders by the RPV sneutrino exchange. The RPV effects on the dilepton invariant mass spectra of B{yields}K{sup (*)}l{sup +}l{sup -} and the normalized A{sub FB}(B{yields}K{sup (*)}l{sup +}l{sup -}) are studied in detail. Our results could be used to probe RPV effects and will correlate with searches for direct RPV signals at LHC.

• OSTI ID: 20868099
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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