Behaviour of gluons at high temperature

K. Kajantie; J. Kapusta

doi:10.1016/0003-4916(85)90153-8

Behaviour of gluons at high temperature

K. Kajantie, J. Kapusta

Physics and Astronomy (Twin Cities)

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Abstract

The screening of colour electric and magnetic fields and plasma oscillations in a high-temperature gluon plasma are investigated using linear response theory and self-consistent nonperturbative solutions to the Schwinger-Dyson equation. Static electric fields are screened, with m_el² = 1 3g²NT² - ( 3 π)( 1 6g²N)^{3 2}T². This result is proven to be gauge invariant in two ways: by computing π₀₀ in temporal axial, Coulomb and covariant gauges, and by computing the physical free energy of a heavy quark pair in the plasma in temporal axial gauge. To order g³ static magnetic fields are not screened.

Original language	English (US)
Pages (from-to)	477-513
Number of pages	37
Journal	Annals of Physics
Volume	160
Issue number	2
DOIs	https://doi.org/10.1016/0003-4916(85)90153-8
State	Published - Apr 1 1985

Bibliographical note

Funding Information:
J.K.‘s research at CERN was supported by a NATO-NSF Postdoctoral Fellowship, and at the University of Minnesota by the U.S. Department of Energy under contract DOE/DE-AC02-79ER-10364.

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abstract = "The screening of colour electric and magnetic fields and plasma oscillations in a high-temperature gluon plasma are investigated using linear response theory and self-consistent nonperturbative solutions to the Schwinger-Dyson equation. Static electric fields are screened, with mel2 = 1 3g2NT2 - ( 3 π)( 1 6g2N) 3 2T2. This result is proven to be gauge invariant in two ways: by computing π00 in temporal axial, Coulomb and covariant gauges, and by computing the physical free energy of a heavy quark pair in the plasma in temporal axial gauge. To order g3 static magnetic fields are not screened.",

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N2 - The screening of colour electric and magnetic fields and plasma oscillations in a high-temperature gluon plasma are investigated using linear response theory and self-consistent nonperturbative solutions to the Schwinger-Dyson equation. Static electric fields are screened, with mel2 = 1 3g2NT2 - ( 3 π)( 1 6g2N) 3 2T2. This result is proven to be gauge invariant in two ways: by computing π00 in temporal axial, Coulomb and covariant gauges, and by computing the physical free energy of a heavy quark pair in the plasma in temporal axial gauge. To order g3 static magnetic fields are not screened.

AB - The screening of colour electric and magnetic fields and plasma oscillations in a high-temperature gluon plasma are investigated using linear response theory and self-consistent nonperturbative solutions to the Schwinger-Dyson equation. Static electric fields are screened, with mel2 = 1 3g2NT2 - ( 3 π)( 1 6g2N) 3 2T2. This result is proven to be gauge invariant in two ways: by computing π00 in temporal axial, Coulomb and covariant gauges, and by computing the physical free energy of a heavy quark pair in the plasma in temporal axial gauge. To order g3 static magnetic fields are not screened.

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Behaviour of gluons at high temperature

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