Study of the semileptonic decays B->pi, D->pi and D->K
Albertus, C., Flynn, J. M., Hernandez, E., Nieves, J. and Verde-Velasco, J.M. (2007) Study of the semileptonic decays B->pi, D->pi and D->K. European Physical Journal A, 31, 725-727. (doi:10.1140/epja/i2006-10247-9).
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The semileptonic decay B->pi is studied starting from a simple quark model that takes 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 q^2 values accesible in the physical decay. By comparison to the experimental data, we extract |V_ub|=0.0034 +/- 0.0003(exp.) +/- 0.0007(theory). As a further test of the model, we have also studied D->pi and D->K decays for which we get good agreement with experiment.
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy
|Date Deposited:||13 Aug 2008|
|Last Modified:||01 Jun 2011 09:34|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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