Abstract

HESS, P.O.  and  CIVITARESE, O.. A review on the advances of an effective model of QCD at low energy. Rev. mex. fis. [online]. 2006, vol.52, suppl.4, pp.38-43. ISSN 0035-001X.

A review on the advances of an effective model for QCD at low energy is given. The basic ingredients of the model are two fermion levels for the quarks, one at positive and one at negative energy. The quarks in these levels are interacting with a boson level, occupied by pairs of gluons with color and spin zero. The meson and baryon spectrum can be described with satisfaction, including the microscopic structure of the nucleon. The Roper resonance is well reproduced and also the position of the pentaquark, though with a possible large width. The vacuum properties are discussed as new partial results. The model was applied to high energy collisions of heavy nuclei, too.

Keywords : Low energy QCD; quark gluon plasma; hadron spectrum.