Deconfinement: Decay or fusion of hadrons?

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Physics of Atomic Nuclei

OSTI ID:88761

Shanenko, A A; Yukalova, E P; Yukalov, V I ^[1]

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1. Joint Institute for Nuclear Research, Moscow (Russian Federation)

In this paper, the authors present the first results obtained from an analysis of the statistical model of deconfinement at nonzero baryon densities. The model was formulated and substantiated; its predictions at zero baryon density are in excellent agreement with the results of lattice calculations. A distinguishing feature of this model is that it takes into account not only the reactions of hadron fusion into larger quark clusters and the reactions of decay of multiquark configurations into hadrons of smaller sizes. The model also admits the possibility of the disintegration of quark clusters colliding in quark matter into unbound quarks. This circumstance allows the authors to arrive at the important conclusion that deconfinement, which occurs when the baryon density increases, is not caused by the fusion of hadrons into one huge cluster extending over the entire system (as it was assumed to be). On the contrary, definement is due to a gradual decay of multiquarks into unbound quarks. It should be emphasized that, although isolated hadrons cannot undergo disintegration into unbound quarks, the decay of colliding multiquark clusters into unbound quarks in nuclear matter is not forbidden. 7 refs.

• OSTI ID: 88761
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 58; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BAG MODEL
NUCLEAR MATTER
QUARK MATTER
STATISTICAL MODELS