The QCD spectrum: mixing, strong decays and the role of sea quarks

Details The QCD spectrum: mixing, strong decays and the role of sea quarks The QCD spectrum: mixing, strong decays and the role of sea quarks

2003-06-30

arxiv.org/abs/hep-ph/0306310v1

Phys.Atom.Nucl. 67 (2004) 553-560; Yad.Fiz. 67 (2004) 571-578

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, invited talk at the NPD-2002 Conference of Russian Academy of Sciences, December 2-6, ITEP, to be published in Phys.

Scientific paper

10.1134/1.1690064

The light hadron spectrum as computed in nonperturbative QCD is reviewed and compared to lattice data and experiment. The mixing of mesons, hybrids and glueballs is calculated in the Field Correlator Method. The strong decay mechanisms are found out in the method and compared to the known phenomenological models. The role of sea quarks (unquenched approximation) is studied analytically using radially excited mesons as an example, and compared to experiment.

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