Chiral phase transition at finite quark mass

K. Langfeld; R. Alkofer; H. Reinhardt

doi:10.1016/0370-2693(92)90974-9

Chiral phase transition at finite quark mass

K. Langfeld, R. Alkofer, H. Reinhardt

Universitat Tubingen

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

In field strength formulated QCD the effective quark interaction induced by gluon condensation is investigated in a next to leading order strong coupling expansion. The quark condensate is calculated as a function of the current quark mass. A first order phase transition is seen at current mass of m[1 GeV] = 70 MeV. Within a NJL type model designed to mimic the essential features of the gluon induced quark interaction it is shown that the phase transition is due to repulsive parts of the quark interaction.

Original language	English
Pages (from-to)	163-168
Number of pages	6
Journal	Physics Letters B
Volume	277
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(92)90974-9
Publication status	Published - Feb 1992
Externally published	Yes

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10.1016/0370-2693(92)90974-9

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title = "Chiral phase transition at finite quark mass",

abstract = "In field strength formulated QCD the effective quark interaction induced by gluon condensation is investigated in a next to leading order strong coupling expansion. The quark condensate is calculated as a function of the current quark mass. A first order phase transition is seen at current mass of m[1 GeV] = 70 MeV. Within a NJL type model designed to mimic the essential features of the gluon induced quark interaction it is shown that the phase transition is due to repulsive parts of the quark interaction.",

author = "K. Langfeld and R. Alkofer and H. Reinhardt",

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AU - Langfeld, K.

AU - Alkofer, R.

AU - Reinhardt, H.

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AB - In field strength formulated QCD the effective quark interaction induced by gluon condensation is investigated in a next to leading order strong coupling expansion. The quark condensate is calculated as a function of the current quark mass. A first order phase transition is seen at current mass of m[1 GeV] = 70 MeV. Within a NJL type model designed to mimic the essential features of the gluon induced quark interaction it is shown that the phase transition is due to repulsive parts of the quark interaction.

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EP - 168

JO - Physics Letters B

JF - Physics Letters B

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Chiral phase transition at finite quark mass

Abstract

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