1993/09/20 by Alexandr Andrianov, Andrianov, Alexandr, V. A. Andrianov +2
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9309297
13 pages, LaTeX, Talk at ISS '93 - Hadrons and Nuclei from QCD (Vladivostok - Sapporo)
arxiv created 1993/09/20 · openalex publication_date 1993/09/20 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In our lecture we discuss the fermion models with quasilocal interaction implemented by derivatives and a momentum cutoff as substitutes of QCD at low energies. They are investigated in the strong coupling regime when several coupling constants are matched to their critical values. It is found that around polycritical points there appear a number of resonances with the same quantum numbers. Respectively the particular change of enviroment caused by gluon condensate results in the mass splitting independent of the cutoff. Such models are supposed to be an essential ingredient in the description of quark matter at high baryon densities.