Baryons in the Field Correlator Method: Effects of the Running Strong Coupling

Details Baryons in the Field Correlator Method: Effects of the Running Strong Coupling Baryons in the Field Correlator Method: Effects of the Running Strong Coupling

2008-12-31

arxiv.org/abs/0901.0036v2

Phys.Rev.D79:034003,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure, 5 tables

Scientific paper

10.1103/PhysRevD.79.034003

The ground and P-wave excited states of nnn, nns and ssn baryons are studied in the framework of the Field Correlator Method using the running strong coupling constant in the Coulomb-like part of the three-quark potential. The running coupling is calculated up to two loops in the background perturbation theory. The three-quark problem has been solved using the hyperspherical functions method. The masses of the S- and P-wave baryons are presented. Our approach reproduces and improves the previous results for the baryon masses obtained for the freezing value of the coupling constant. The string correction for the confinement potential of the orbitally excited baryons, which is the leading contribution of the proper inertia of the rotating strings, is estimated.

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