Two-particle Bound States: Mesons and Glueballs

A relativistic quantum-field model based on analytic confinement is considered to study the twoquark and two-gluon bound states. For the spectra of two-particle bound states we solve the ladder Bethe-Salpeter equation. We provide a new, independent and analytic estimate of the lowest glueball mass and...

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Bibliographic Details
Published in:EPJ Web of conferences 2010, Vol.3, p.3014
Main Author: Ganbold, G.
Format: Article
Language:English
Online Access:Get full text
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Summary:A relativistic quantum-field model based on analytic confinement is considered to study the twoquark and two-gluon bound states. For the spectra of two-particle bound states we solve the ladder Bethe-Salpeter equation. We provide a new, independent and analytic estimate of the lowest glueball mass and found it at 1660 MeV. The conventional mesons and the weak decay constants are described to extend the consideration. By using a few parameters (the quark masses, the coupling constant and the confinement scale) we obtain numerical results which are in reasonable agreement with experimental evidence in the wide range of energy scale from 140MeV up to 9 GeV. The model can serve a reasonable framework to describe simultaneously different sectors in low-energy particle physics.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/20100303014