Electromagnetic structure and weak decay of pseudoscalar mesons in a light-front QCD-inspired model |
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| Authors: | L. A. M. Salcedo J. P. B. C. de Melo D. Hadjimichef T. Frederico |
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| Affiliation: | (1) Departamento de Fısica, Instituto Tecnológico de Aeronáutica, Cento Técnico Aeroespacial, 12.228-900 S ao Paulo, Brazil;(2) Centro de Ciências Exatas e Tecnológicas, Universidade Cruzeiro do Sul, 08060-070 S ao Paulo, Brazil;(3) Instituto de Fısica Teórica, Universidade Estadual Paulista, 01405-900 S ao Paulo, Brazil;(4) Instituto de Fısica e Matemática, Universidade Federal de Pelotas, 96010-900 Rio Grande do Sul, Brazil |
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| Abstract: | We study the scaling of the 3S1-1S0 meson mass splitting and the pseudoscalar weak-decay constants with the mass of the meson, as seen in the available experimental data. We use an effective light-front QCD-inspired dynamical model regulated at short distances to describe the valence component of the pseudoscalar mesons. The experimentally known values of the mass splitting, decay constants (from global lattice-QCD averages) and the pion charge form factor up to 4 [GeV/c]2 are reasonably described by the model. |
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| Keywords: | 12.39.Ki Relativistic quark model 13.20.-v Leptonic, semileptonic, and radiative decays of mesons 14.40.-n Mesons |
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