Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 47: Hadron Structure and Spectroscopy II

HK 47.4: Vortrag

Mittwoch, 18. März 2009, 14:45–15:00, H-ZO 30

Mesons and glueballs: the ground states — •Gurjav Ganbold — JINR, Dubna, Russia — Inst. Phys. Tech., Ulaanbaatar

The two-quark and two-gluon bound states have been studied within a relativistic quantum-field model based on analytic confinement. The ladder Bethe-Salpeter equation is solved for the meson and glueball spectra involving a minimal set of parameters (the quark masses, the coupling constant and the confinement scale). The model provides a reasonable framework to compute data simultaneously in three sectors of low-energy particle physics, namely, the lowest glueball mass, the conventional meson spectrum (in the mass range from 140MeV up to 9.5GeV), and the pion and kaon weak decay constants. The obtained results are in reasonable agreements with the recent experimental data.