Form factors, branching ratio and forward-backward asymmetry in B -> K_{1}ell ^{+} ell ^{-} decays

Abstract

We study long-distance effects in rare exclusive semileptonic decays B -> K_{1}ell ^{+}ell ^{-}, K_{1} is the axial vector meson.The form factors, describing the meson transition amplitudes of the effective Hamiltonian, are calculated using Ward identites which are then used to calculate branching ratio and forward-backward asymmetry in these decay modes. The zero of forward-backward asymmetry is of special interest and provide us the precission test of Standard model.

15 pages, 2 figures

References in corpus (2)

• Annihilation Contributions in B -> K_1 gamma decay in next-to-leading order in LEET and CP-asymmetry
• CP asymmetries in dileptonic decays of B-meson in MSSM

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• Testing Leptoquark and $Z^{\prime }$ Models via $B\to K_1(1270,1400){\mu }^{+}{\mu }^{-}$ Decays
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• Implications of new physics in $B\to K_1{\mu }^{+}{\mu }^{-}$ decay processes
• B \to 0^{+}(1^{+}) + missing energy in Unparticle Physics
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