Vertical bar V-ub vertical bar from exclusive semileptonic Beta ->pi decays revisited
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Vertical bar V-ub vertical bar from exclusive semileptonic Beta ->pi decays revisited

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Vertical bar V-ub vertical bar from exclusive semileptonic Beta ->pi decays revisited

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Flynn, Jonathan M.; Nieves Pamplona, Juan Miguel
This document is a artículoDate2007

Este documento está disponible también en : http://hdl.handle.net/10550/39279
We update the extraction of |V-ub| from exclusive semileptonic B ->pi decays, combining experimental partial branching fraction information with theoretical form-factor calculations, using the recently revised HPQCD results for the form factors f(+) and f(0). We use Omnes representations to provide the required parametrizations of the form factors. The extracted value is |V-ub|=(3.47 +/- 0.29 +/- 0.03)x10(-3), in striking agreement with |V-ub| extracted using all other inputs in CKM fits and showing some disagreement with |V-ub| extracted from inclusive semileptonic B ->pi decays.

    Flynn, Jonathan M. Nieves Pamplona, Juan Miguel 2007 Vertical bar V-ub vertical bar from exclusive semileptonic Beta ->pi decays revisited Physical Review D 76 3 031302
http://dx.doi.org/10.1103/PhysRevD.76.031302

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