Light-Front Model of Transition Form-Factors in Heavy Meson Decay
High Energy Physics - Phenomenology
2014-11-20 v1 Nuclear Theory
Abstract
Electroweak transition form factors of heavy meson decays are important ingredients in the extraction of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements from experimental data. In this work, within a light-front framework, we calculate electroweak transition form factor for the semileptonic decay of mesons into a pion or a kaon. The model results underestimate in both cases the new data of CLEO for the larger momentum transfers accessible in the experiment. We discuss possible reasons for that in order to improve the model.
Keywords
Cite
@article{arxiv.1003.2132,
title = {Light-Front Model of Transition Form-Factors in Heavy Meson Decay},
author = {J. P. B. C. de Melo and T. Frederico},
journal= {arXiv preprint arXiv:1003.2132},
year = {2014}
}
Comments
Paper with 5 pages and 2 eps figures. To appear to Nuclear Physics B. Talk at Light Cone 2009: Relativistic Hadronic and Particle Physics (LC 2009), Sao Jose dos Campos, S.P, Brazil, 8-13 Jul 2009.