Form factors of meson decays in the relativistic constituent quark model

1995/09/11 by Dmitri Melikhov, D. Melikhov · 8 citations
Physics and Astronomy · #Constituent quark #Form factor (electronics) #Hadron #High-Energy Particle Collisions Research #Light cone #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Pseudoscalar meson #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Quark model #Quarkonium #hep-ph

paper · pdf · doi:10.1103/physrevd.53.2460

published as Phys.Rev. D53 (1996) 2460-2479 · Latex, 29 pages, 18 figures

arxiv created 1995/09/11 · openalex publication_date 1996/03/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A formalism for the relativistic description of hadron decays within the constituent quark model is presented. First, hadron amplitudes of the light-cone constituent quark model, in particular, the weak transition form factors at spacelike momentum transfers, are represented in the form of dispersion integrals over the hadron mass. Second, the form factors at timelike momentum transfers are obtained by performing the analytic continuation from the region q²\ensuremath≤0. As a result, the transition form factors both in the scattering and the decay regions are expressed through light-cone wave functions of the initial and final hadrons. The technique is applied to the description of the semileptonic decays of pseudoscalar mesons and direct calculation of the transition form factors at q²\ensuremath\gtrsim0. Meson properties in the heavy quark limit are investigated. \textcopyright 1996 The American Physical Society.

Citations

• Precise determination of and measurement of the “perturbative” pole mass from
• Charge form factors of pseudoscalar mesons

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