Consistent treatment for valence and nonvalence configurations in semileptonic weak deacys

Details Consistent treatment for valence and nonvalence configurations in semileptonic weak deacys Consistent treatment for valence and nonvalence configurations in semileptonic weak deacys

2001-08-30

arxiv.org/abs/hep-ph/0108251v2

Phys.Lett. B530 (2002) 93

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 5 figures, revised version

Scientific paper

10.1016/S0370-2693(02)01342-4

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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