Strong Effective Coupling, Meson Ground States, and Glueball within Analytic Confinement
Bogoliubov Laboratory of Theoretical Physics, JINR, Joliot-Curie 6, 141980 Dubna, Russia
Institute of Physics and Technology, Mongolian Academy of Sciences, Enkh Taivan 54b, 13330 Ulaanbaatar, Mongolia
Received: 13 February 2019 / Revised: 15 March 2019 / Accepted: 18 March 2019 / Published: 1 April 2019
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The phenomena of strong running coupling and hadron mass generating have been studied in the framework of a QCD-inspired relativistic model of quark-gluon interaction with infrared-confined propagators. We derived a meson mass equation and revealed a specific new behavior of the mass-dependent strong coupling
defined in the time-like region. A new infrared freezing point
at origin has been found and it did not depend on the confinement scale
. Independent and new estimates on the scalar glueball mass, ‘radius’ and gluon condensate value have been performed. The spectrum of conventional mesons have been calculated by introducing a minimal set of parameters: the masses of constituent quarks and
. The obtained values are in good agreement with the latest experimental data with relative errors less than 1.8 percent. Accurate estimates of the leptonic decay constants of pseudoscalar and vector mesons have been performed.
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Ganbold, G. Strong Effective Coupling, Meson Ground States, and Glueball within Analytic Confinement. Particles 2019, 2, 180-196.
Ganbold G. Strong Effective Coupling, Meson Ground States, and Glueball within Analytic Confinement. Particles. 2019; 2(2):180-196.
Ganbold, Gurjav. 2019. "Strong Effective Coupling, Meson Ground States, and Glueball within Analytic Confinement." Particles 2, no. 2: 180-196.
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