Scalar mesons and glueballs in a chiral U(3) x U(3) quark model with 't Hooft interaction

Authors
Nagy, M Volkov, MK Yudichev, VL
Citation
M. Nagy et al., Scalar mesons and glueballs in a chiral U(3) x U(3) quark model with 't Hooft interaction, ACT PHYS SL, 50(6), 2000, pp. 643-653
Citations number
43
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA SLOVACA
ISSN journal
03230465 → ACNP
Volume
50
Issue
6
Year of publication
2000
Pages
643 - 653
Database
ISI
SICI code
0323-0465(200012)50:6<643:SMAGIA>2.0.ZU;2-Q
Abstract
In a U(3) x U(3) quark chiral model of the Nambu-Jona-Lasinio (NJL) type wi th the 't Hooft interaction, the ground scalar isoscalar mesons and a scala r glueball are described. The glueball (dilaton) is introduced into the eff ective meson Lagrangian written in a chirally symmetric form on the base of scale invariance. The singlet-octet mixing of scalar isoscalar mesons and their mixing with the glueball are taken into account. Mass spectra of the scalar mesons and glueball and their strong decays are described.