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Improved Analysis of $B\to \pi e \nu$ from QCD Sum Rules on the Light-Cone
We present a new calculation of the B->pi form-factor f_+, relevant for the measurement of |V_{ub}| from semileptonic B->pi transitions, from QCD sum rules on the light-cone. The new element is the calculation of radiative corrections to next-to-leading twist-3 accuracy. We find that these con...
Autores principales: | Ball, Patricia, Zwicky, Roman |
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Lenguaje: | eng |
Publicado: |
2001
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2001/10/019 http://cds.cern.ch/record/522198 |
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