On the meson mass spectrum in the covariant confined quark model

Ganbold, Gurjav; GUTSCHE, THOMAS; Ivanov, Mikhail A.; LYUBOVITSKIJ, VALERY E.

Abstract

We provide a new insight into the problem of generating the hadron mass spectrum in the framework of the covariant confined quark model. One of the underlying principles of this model is the compositeness condition, which means that the wave function renormalization constant of the elementary hadron is equal to zero. In particular, this equation allows us to express the Yukawa coupling of the meson fields to the constituent quarks as a function of other model parameters. In addition to the compositeness condition, we also employ a further equation relating the meson mass function to the Fermi coupling. Both equations guarantee that the Yukawa-type theory is equivalent to the Fermi-type theory, thereby providing an interpretation of the meson field as the bound state of its constituent fermions (quarks). We evaluate the Fermicoupling as a function of meson (pseudoscalar and vector) masses and vary the values of the masses in such a way to obtain a smooth behavior for the resulting curve. The mass spectrum obtained in this manner is found to be in good agreement with the experimental data.

Más información

Título según WOS: ID WOS:000356252800002 Not found in local WOS DB
Título de la Revista: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
Volumen: 42
Número: 7
Editorial: IOP PUBLISHING LTD
Fecha de publicación: 2015
DOI:

10.1088/0954-3899/42/7/075002

Notas: ISI