Exploring a possible origin of the QCD critical endpoint

Journal Article · Fri Mar 15 00:00:00 EDT 2013 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778813020063· OSTI ID:22156401

Bugaev, K. A., E-mail: [e-mail]; Petrov, V. K., E-mail: [e-mail]; Zinovjev, G. M., E-mail: [e-mail] ^[1]

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1. Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine (Ukraine)

We develop a new model of the QCD critical endpoint by matching the deconfinement phase transition line of quark-gluon bags with the similar line at which the bag surface tension coefficient vanishes. Unlike all previous studies of such models the deconfined phase in our approach is defined not by an essential singularity of the isobaric partition function but its simple pole. As an unexpected result we find out that the first-order phase transition which is usually defined by a discontinuity of the first derivative of the bag system pressure results from a discontinuity of the derivative of surface tension coefficient of quark-gluon bags.

• OSTI ID: 22156401
• Journal Information: Physics of Atomic Nuclei, Vol. 76, Issue 3; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
GLUONS
PARTITION FUNCTIONS
PHASE TRANSFORMATIONS
QUANTUM CHROMODYNAMICS
QUARKS
SINGULARITY
SURFACE TENSION