Consistent treatment for valence and nonvalence configurations in semileptonic weak deacys

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.

14 pages, 5 figures, revised version

References in corpus (2)

• A consistent treatment for pion form factors in space-like and time-like regions
• Electromagnetic properties of heavy mesons in heavy quark limit

Cited by in corpus (7)

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• Form factors of $V^{\prime }\to V^{\prime \prime }$ transition within the light-front quark models
• Current in the light-front Bethe-Salpeter formalism I: Replacement of non-wave function vertices
• Tensor form factors of $P\to P,S,V$ and $A$ transitions within the standard and the covariant light-front approaches
• Zero Modes in Electromagnetic Form Factors of the Nucleon in a Light-Cone Diquark Model
• Lepton pair decays of the $K_L$ meson in the light-front model