Toward a theory of binary bound states in the quark-gluon plasma
- Department of Physics and Astronomy, State University of New York, Stony Brook, New York 11794-3800 (United States)
Although at asymptotically high temperatures the quark-gluon plasma (QGP) is a gas of weakly interacting quasiparticles (modulo long-range magnetism), and it has quite different properties at temperatures of the order of a few times the critical temperature T=(1-3)T{sub c}. As experiments and lattice simulations are now showing, in this region the QGP displays strong interactions between the constituents. In this paper we try to develop a theory of one of its consequences, namely, the properties of a large number of binary bound states, both hadronlike (colorless) and exotic (colored) bound pairs gq, qq, and gg. We evaluate their binding energies and zero-binding lines on the phase diagram and estimate their contribution to bulk thermodynamics (pressure). Their role in the transport properties (viscosity), emphasized in our previous paper, will be addressed elsewhere.
- OSTI ID:
- 20705153
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 70, Issue 5; Other Information: DOI: 10.1103/PhysRevD.70.054507; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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