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Title: Quark model study of the semileptonic B {yields} {pi} decay

Abstract

The semileptonic decay B {yields} {pi}l{nu}-barl is studied starting from a simple quark model and taking into account the effect of the B* resonance. A novel, multiply subtracted, Omnes dispersion relation has been implemented to extend the predictions of the quark model to all physical q2 values. We find |Vub| = 0.0034 {+-} 0.0003(exp.) {+-} 0.0007(theory), in good agreement with experiment.

Authors:
;  [1]; ;  [2];  [3]
  1. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom)
  2. Grupo de Fisica Nuclear, Departamento de Fisica Fundamental e IUFFyM, Universidad de Salamacanca, E-37008 Salamanca (Spain)
  3. Departamento de Fisica Atomica, Molecular y Nuclear, Universidad de Granada, E-18071 Granada (Spain)
Publication Date:
OSTI Identifier:
21056841
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 892; Journal Issue: 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714403; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B MESONS; DISPERSION RELATIONS; NEUTRINOS; PARTICLE PRODUCTION; PIONS; QUARK MODEL; RESONANCE PARTICLES; SEMILEPTONIC DECAY

Citation Formats

Albertus, C., Flynn, J. M., Hernandez, E., Verde-Velasco, J. M., and Nieves, J.. Quark model study of the semileptonic B {yields} {pi} decay. United States: N. p., 2007. Web. doi:10.1063/1.2714403.
Albertus, C., Flynn, J. M., Hernandez, E., Verde-Velasco, J. M., & Nieves, J.. Quark model study of the semileptonic B {yields} {pi} decay. United States. doi:10.1063/1.2714403.
Albertus, C., Flynn, J. M., Hernandez, E., Verde-Velasco, J. M., and Nieves, J.. Tue . "Quark model study of the semileptonic B {yields} {pi} decay". United States. doi:10.1063/1.2714403.
@article{osti_21056841,
title = {Quark model study of the semileptonic B {yields} {pi} decay},
author = {Albertus, C. and Flynn, J. M. and Hernandez, E. and Verde-Velasco, J. M. and Nieves, J.},
abstractNote = {The semileptonic decay B {yields} {pi}l{nu}-barl is studied starting from a simple quark model and taking into account the effect of the B* resonance. A novel, multiply subtracted, Omnes dispersion relation has been implemented to extend the predictions of the quark model to all physical q2 values. We find |Vub| = 0.0034 {+-} 0.0003(exp.) {+-} 0.0007(theory), in good agreement with experiment.},
doi = {10.1063/1.2714403},
journal = {AIP Conference Proceedings},
number = 1,
volume = 892,
place = {United States},
year = {Tue Feb 27 00:00:00 EST 2007},
month = {Tue Feb 27 00:00:00 EST 2007}
}