Exclusive Semileptonic and Rare B-Meson Decays in QCD

Abstract

We present the first complete results for the semileptonic and rare radiative form factors of B-mesons weak decay into a light vector-meson (rho, omega, K*, phi) in the light-cone sum-rule approach. The calculation includes radiative corrections, higher-twist corrections and SU(3)-breaking effects. The theoretical uncertainty is investigated in detail. A simple parametrization of the form factors is given in terms of three parameters each. We find that the form factors observe several relations inspired by heavy-quark symmetry.

arXiv comment35 pages, 9 figures; English phrasing polished, lattice-data in Figs. 6 and 7 corrected; accepted for publication in PRD

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• B and D Meson Decay Constants in Lattice QCD
• Lattice Study of the Decay B^0-bar -> rho^+ l^- nu_l-bar: Model-Independent Determination of |V_{ub}|

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• Scrutinizing $B^0$-meson flavor changing neutral current decay into scalar $K_0^{\ast }(1430)$ meson with $b\to s{\ell }^{+}{\ell }^{-}(\nu \bar{\nu })$ transition
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• Next-to-leading Order Calculations of the Radiative and Semileptonic Rare B Decays in the Standard Model and Comparison with Data
• Determination of |Vub|
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• A Simple Expression for Heavy to Light Meson Semileptonic Decays Form Factors
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• Baryons and baryoniums in the perspective of QCD sum rules
• Study of rare semileptonic $B_c^{+}\to D^{+}\nu \bar{\nu }$ decay in the light-cone quark model
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