The semileptonic B->pi decay in a Constituent Quark-Meson model

Abstract

We evaluate the form factors describing the exclusive decay B-> pi l nu by using a Constituent Quark-Meson model based on an effective quark-meson Lagrangian (CQM). The model allows for an expansion in the pion momenta and we consider terms up to the first order in the pion field derivatives. We compute the leading terms in the soft pion limit and consider corrections to this limit.

6 pages, 3 figures, LaTeX (uses aps, epsf, revtex), formula 26 corrected, discussion enlarged, references updated and other minor changes

References in corpus (7)

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• A Constituent Quark-Meson Model for Heavy-Meson Processes
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Cited by in corpus (7)

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• Study on $B_s\to D_{sJ}(2317,2460)l\bar{\nu }$ Semileptonic Decays in the CQM Model
• Charming penguin contributions to B => K π
• Semileptonic $B\to \pi$ Decays from an Omnès Improved Nonrelativistic Constituent Quark Model
• Predicting D -> sigma pi
• Study of Semileptonic Decays $B^{\pm }\to {\eta }^{(\prime )}l\nu$
• Semileptonic decays of $B_{s1}$, $B_{s2}^{\ast }$, $B_{s0}$ and $B_{s1}^{\prime }$