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Münster 2002 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 38: Theory VI

HK 38.2: Talk

Thursday, March 14, 2002, 14:15–14:30, C

Confinement in the Chromodielectric Model — •Gunnar Martens, Carsten Greiner, Stefan Leupold, and Ulrich Mosel — Institut für Theoretische Physik, Universität Gießen, Germany

The phenomenon of confinement is an open problem and not understood from first principles. The chromodielectric model [1,2] describes it as the consequence of the interaction between color electromagnetic fields and the vacuum having dielectric properties. The vacuum is described via a scalar field with selfinteraction designed to separate perturbative from nonperturbative spatial regions. We investigate static properties of meson and baryon type configurations. For the mesons, we find the linear rising string potential and reproduce the string tension found in heavy quark meson spectroscopy. For the three quark system we study the field configuration to distinguish between the Δ and the Y type models of the baryon.

Work supported by BMBF.

[1] R. Friedberg, T.D. Lee; Phys.Rev. D 15 (1977) 1694

[2] C.T. Traxler, U. Mosel, T.S. Biro; Phys.Rev. C 59 (1999) 1620

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