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Nonperturbative approach to chiral phase transition in chromodynamics

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Zeitschrift für Physik C Particles and Fields

Abstract

A nonperturbative approach aimed at the localization of the QCD chiral phase transition atT, π≠0 is presented. We identify this transition with the dynamical quark mass peculiarity which results from the selfconsistent solution of the Schwinger-Dyson equation for the quark propagator. The specific model of the effective quark-gluon interaction, based both on the peculier interpolation for the running coupling constant and on the nonperturbative gluon magnetic and electric masses is exploited. The numerical estimates of the phase diagram are presented and it is shown that phase peculiarities are determined not only by the ultraviolet properties of QCD but also by its infrared structure. The obtained results are discussed, compared with other approaches and a possible interpretation is given.

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Author notes

  1. O. K. Kalashnikov

    Present address: Theoretical Physics Department of Lebedev Physical Institute, USSR Academy of Sciences, Leninskii Prospect 53, Moscow, USSR

Authors and Affiliations

  1. Research Institute for Theoretical Physics, University of Helsinki, Siltavuorenpenger 20 C, SF-00170, Helsinki, Finland

    O. K. Kalashnikov

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Kalashnikov, O.K. Nonperturbative approach to chiral phase transition in chromodynamics. Z. Phys. C - Particles and Fields 39, 427–431 (1988). https://doi.org/10.1007/BF01548294

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  • DOI: https://doi.org/10.1007/BF01548294

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