The analysis of $B_d->(\eta ,{\eta }^{\prime }){\ell }^{+}{\ell }^{-}$ decays in the standard model

Abstract

We study the differential branching ratio, branching ratio and the CP-violating asymmetry for the exclusive $B_d->(\eta ,{\eta }^{\prime }){\ell }^{+}{\ell }^{-}$ decays in the standard model. We deduce the $B_d->(\eta ,{\eta }^{\prime })$ form factors from the form factors of $B->\pi$ available in the literature, by using the $SU(3{)}_F$ symmetry. We observe that these decay modes, which are within the reach of forthcoming B-factories, are very promising to observe CP-violation.

Comments: 12 pages, 8 figures, version to appear in Eur.Phys.J.C