Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2005-11-07
AIPConf.Proc.806:130-136,2006
Physics
High Energy Physics
High Energy Physics - Lattice
7 pages, 11 figures. Talk given at the International Workshop on Quantum Chromodynamics: QCD@Work 2005, Conversano, Italy, 16-
Scientific paper
10.1063/1.2163755
Studying the order of the chiral transition for $N_f=2$ is of fundamental importance to understand the mechanism of color confinement. We present results of a numerical investigation on the order of the transition by use of a novel strategy in finite size scaling analysis. The specific heat and a number of susceptibilities are compared with the possible critical behaviours. A second order transition in the O(4) and O(2) universality classes are excluded. Substantial evidence emerges for a first order transition. Results are in agreement with those found by studying the scaling properties of a disorder parameter related to the dual superconductivity mechanism of color confinement.
D'Elia Marcella
Giacomo Adriano Di
Pica Claudio
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