10.1016/S0920-5632(99)85093-2
Engels, Jürgen
Jürgen
Engels
Scheideler, T
T
Scheideler
Corrections to scaling and critical amplitudes in SU(2) lattice gauge theory
ELSEVIER SCIENCE BV
1999
2010-04-28T13:05:50Z
2018-07-24T12:59:59Z
journal_article
https://pub.uni-bielefeld.de/record/1622783
https://pub.uni-bielefeld.de/record/1622783.json
0920-5632
hep-lat/9808041
We calculate the critical amplitudes of the Polyakov loop and its susceptibility at the deconfinement transition of SU(2) gauge theory. To this end we carefully study the corrections to the scaling functions of the observables coming from irrelevant exponents. As a guiding line for determining the critical amplitudes we use envelope equations derived from the finite size scaling formulae for the observables. The equations are then evaluated with new high precision data obtained on N-sigma(3) x 4 lattices for N-sigma = 12, 18, 26 and 36. We find different correction-to-scaling behaviours above and below the transition. Our result for the universal ratio of the susceptibility amplitudes is C+/C- = 4.72(11) and agrees perfectly with a recent measurement for the 3d Ising model.