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Consistent treatment for valence and nonvalence configurations in semileptonic weak deacys

Chien-Wen Hwang
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Abstract

We discuss the semileptonic weak decays of $P\to P$ ($P$ denotes a pseudoscalar meson). In these timelike processes, the problem of the nonvalence contribution is solved systematically as well as the valence one. These contributions are related to the light-front quark model (LFQM), and the numerical results show the nonvalence contribution of the light-to-light transition is larger than of the heavy-to-light one. In addition, the relevant CKM matrix elements are calculated. They are consistent with the data of Particle Data Group.

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Chien-Wen Hwang. 2001-11-19. Consistent treatment for valence and nonvalence configurations in semileptonic weak deacys. https://doi.org/10.1016/s0370-2693(02)01342-4

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