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Article overview
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Scaling Properties of the Energy Density in SU(2) Lattice Gauge Theory | J. Engels
; F. Karsch
; K. Redlich
; | Date: |
8 Aug 1994 | Journal: | Nucl.Phys. B435 (1995) 295-310 | Subject: | hep-lat | Abstract: | The lattice data for the energy density of $SU(2)$ gauge theory are calculated with
op~derivatives of the coupling constants. These derivatives are obtained from two sources : i) a parametrization of the
op~beta function in accord with the measured critical temperature and $Deltaeta-$values and ii) a
op~calculation of the presssure. We then perform a detailed finite size scaling analysis of the energy density near $T_c$. It is shown that at the critical temperature the energy density is scaling as a function of $VT^3$ with the corresponding $3d$ Ising model critical exponents. The value of $epsilon(T_c)/T^4_c$ in the continuum limit is estimated to be 0.256(23). In the high temperature regime the energy density is approaching its weak coupling limit from below, at $T/T_c approx 2$ it has reached only about $70\%$ of the limit. | Source: | arXiv, hep-lat/9408009 | Other source: | [GID 199277] hep-lat/9408009 | Services: | Forum | Review | PDF | Favorites |
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