Hadronic modes in the quark plasma with an internal symmetry
1 Institut für Theoretische Physik, Universität Giessen,
35392 Giessen, Germany
2 Theory Group, Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Calcutta -700 064, India
3 Institute of Physics, Sachivalaya Marg, Bhubaneswar - 751 005, India
Received: 25 May 1999 / Published online: 2 November 1999
We show that requiring the quark partition function to be color singlet in the SU(3) color gauge group leads to reordering of the thermodynamic potential in terms of the colorless multiquark modes ( , qqq, , ) at any given temperature. These color-singlet structures are not bound states in a real sense, rather they are a combination of constituent quarks only. In accord with the ``preconfinement" property of QCD, under a suitable confining mechanism, these could evolve into color-singlet hadrons/baryons at low temperatures. At fairly high temperatures, these multiquark color-singlet structures exist in the plasma as hadronic modes, just as in the more familiar low-temperature phase. This suggests that there exists a strong color correlation in the plasma at all temperatures.