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Order, Disorder and Confinement

By M. D'Elia, A. Di Giacomo and C. Pica

Abstract

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

Topics: FIS/02 - Fisica teorica, modelli e metodi matematici
Publisher: 'AIP Publishing'
Year: 2006
DOI identifier: 10.1063/1.2163755
OAI identifier: oai:eprints.adm.unipi.it:1532
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