Eur. Phys. J. C (2010) 65: 475-490
https://doi.org/10.1140/epjc/s10052-009-1200-2

Regular Article - Theoretical Physics

Probing new physics through B→Kl ⁺ l ⁻ decays in R-parity violating minimal supersymmetric standard model

Physics Department, COMSATS Institute of Information Technology, Islamabad, Pakistan

^* e-mail: kahmed_pk@yahoo.com

Received: 19 March 2009
Revised: 29 September 2009
Published online: 24 November 2009

Abstract

We study the decay rate of the process B→Kl ⁺ l ⁻ (l=e,μ) and some of its other related observables, like the forward–backward asymmetry (A _FB), polarization asymmetry (PA), double branching ratio and CP asymmetry (A _CP) in the R-parity violating Minimal Supersymmetric Standard Model ( MSSM). We have performed an error analysis of the differential branching fraction, A _FB and CP asymmetry. The analysis shows that theoretical results based on MSSM as an additional effect are compatible with the standard model. A _FB is found to be zero, in agreement with SM. The average A _CP is not only found to be significant in comparison with SM, but it is also compatible with the measured value within errors.