Order, Disorder and Confinement

Journal Article · Thu Jan 12 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2163755· OSTI ID:20787628

D'Elia, M ^[1]; Di Giacomo, A; Pica, C ^[2]

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1. Dipartimento di Fisica dell'Universita di Genova, Via Dodecaneso 33, I-16146 Genova (Italy)
2. Dipartimento di Fisica dell'Universita di Pisa, largo Pontecorvo 3, I-56127 Pisa (Italy)

Studying the order of the chiral transition for Nf = 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.

• OSTI ID: 20787628
• Journal Information: AIP Conference Proceedings, Vol. 806, Issue 1; Conference: International workshop on quantum chromodynamics: Theory and experiment, Conversano, Bari (Italy), 16-20 Jun 2005; Other Information: DOI: 10.1063/1.2163755; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
CHIRALITY
COLOR MODEL
O GROUPS
QUANTUM CHROMODYNAMICS
SCALE INVARIANCE
SPECIFIC HEAT
SUPERCONDUCTIVITY