Quark model study of the semileptonic B -> pi decay
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
The semileptonic decay B->pi is studied starting from a simple quark model and taking into account the effect of the B* resonance. A novel, multiply subtracted, Omn\`es dispersion relation has been implemented to extend the predictions of the quark model to all physical q^2 values. We find |V_{ub}|=0.0034 +/- 0.0003(exp.)+/- 0.0007(theory), in good agreement with experiment.
Cite
@article{arxiv.hep-ph/0610224,
title = {Quark model study of the semileptonic B -> pi decay},
author = {C. Albertus and J. M. Flynn and E. Hernandez and J. Nieves and J. M. Verde--Velasco},
journal= {arXiv preprint arXiv:hep-ph/0610224},
year = {2008}
}
Comments
Three pages, two figures. To appear in the proceedings of Quark Confinament and Hadron Spectrum VII. Azores, September 2006