ar X iv : h ep - p h / 99 06 39 1 v 1 1 6 Ju n 19 99 1 Gluon condensate , quark propagation , and dilepton production in the quark - gluon plasma
نویسنده
چکیده
As an alternative method to lattice and perturbative QCD we suggest to include the gluon condensate into the parton propagators [1]. In this way non-perturbative effects are taken into account within the Green functions technique. In the case of a pure gluon gas with energy density ǫ and pressure p the gluon condensate can be related to the interaction measure ∆ = (ǫ− 3p)/T 4 via [2] 〈G〉T = 〈G〉0 −∆T , (1)
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ar X iv : h ep - p h / 98 11 36 4 v 1 1 7 N ov 1 99 8 Quark Propagation in a Quark - Gluon Plasma with Gluon Condensate ∗
We present a calculation of the thermal quark propagator taking the gluon condensate above the critical temperature into account. The quark dispersion relation following from this propagator, describing two massive modes, is discussed. PACS numbers: 12.38.Mh, 14.65.-q, 12.38.Lg Typeset using REVTEX Supported by DFG Permanent address: Institut für Theoretische Physik, Universität Giessen, 35392 ...
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