Systematic analysis of the exclusive B -> K*l(+)l(-) decay - art. no. 014026

Citation
Tm. Aliev et al., Systematic analysis of the exclusive B -> K*l(+)l(-) decay - art. no. 014026, PHYS REV D, 6201(1), 2000, pp. 4026
Citations number
37
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6201
Issue
1
Year of publication
2000
Database
ISI
SICI code
0556-2821(20000701)6201:1<4026:SAOTEB>2.0.ZU;2-U
Abstract
A model-independent analysis for the exclusive, rare B-->K*l(+)l(-) decay i s presented. Systematically studied are the experimentally measured quantit ies, such as the branching ratio, forward-backward asymmetry, longitudinal polarization of the final leptons, and the ratio Gamma(L)/Gamma(T) of the d ecay widths when the K* meson is longitudinally and transversally polarized . The dependence of the asymmetry parameter alpha = 2 Gamma(L)/Gamma(T)- l on the new Wilson coefficients is also studied in detail. It is found that the aforementioned physical observables are quite sensitive to the new Wils on coefficients. Therefore, once we have the experimental data with high st atistics and a deviation from the standard model, we can interpret the sour ce of such a discrepancy.