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      Susceptibilities, the Specific Heat and a Cumulant in Two-Flavour QCD

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          Abstract

          We study the quark mass dependence of various response functions, which contribute to chiral susceptibilities and the specific heat in the staggered fermion formulation of two-flavour QCD. This yields information about the critical exponents α, β and δ. In the case of the chiral susceptibility, obtained as derivative of the chiral order parameter with respect to the quark mass, we calculate all contributions. This allows to construct a cumulant of the order parameter, which is a scaling function and yields a direct determination of the critical exponent δ. All our results are consistent with a second order phase transition.

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          Critical exponents from field theory

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            Remarks on the chiral phase transition in chromodynamics

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              Critical indices from perturbation analysis of the Callan-Symanzik equation

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                Author and article information

                Journal
                13 June 1994
                Article
                10.1103/PhysRevD.50.6954
                hep-lat/9406008
                d0eab9c2-27c4-4606-b9e4-12403f48eb1d
                History
                Custom metadata
                Phys.Rev. D50 (1994) 6954-6962
                16 pages (TeX file) + 7 figures (appended as ps-files), uuencoded, Bielefeld preprint, BI-TP 94/29, June 1994
                hep-lat

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