EPJ Web Conf.
Volume 138, 2017XXIII International Baldin Seminar on High Energy Physics Problems Relativistic Nuclear Physics and Quantum Chromodynamics (Baldin ISHEPP XXIII)
|Number of page(s)||6|
|Section||Hadron spectroscopy, multiquarks|
|Published online||27 March 2017|
The fermi coupling, mass spectrum and decay properties of mesons within the covariant confined quark model
1 Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna 141980, Russia
2 Institute of Physics and Technology, Ulaanbaatar 13330, Mongolia
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Published online: 27 March 2017
Main properties of stable quark-antiquark bound states have been investigated by using a relativistic quark model with analytic confinement. A new insight into the problem of hadron mass generation is provided. It has been shown that the compositeness condition expressing the Yukawa coupling of the meson-quark interaction and the master equation relating the meson mass function to the Fermi coupling can together guarantee the equivalency of the both theories, thereby providing an interpretation of the meson field as a bound state of constituent quarks. A smooth behavior for the Fermi coupling G(M) obeying reasonable accuracy for the meson estimated masses M has been obtained. We have also updated our previous numerical results for the weak-decay constants as well as the electromagnetic decay widths of mesons. The obtained estimates are found in reasonable agreement with the recent experimental data.
© The Authors, published by EDP Sciences, 2017
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