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The deconfining phase transition in full QCD with two dynamical flavors
Author(s) -
Paolo Cea,
Leonardo Cosmai,
Massimo D’Elia
Publication year - 2004
Publication title -
journal of high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 261
eISSN - 1126-6708
pISSN - 1029-8479
DOI - 10.1088/1126-6708/2004/02/018
Subject(s) - quantum chromodynamics , physics , phase transition , particle physics , gauge theory , gauge (firearms) , quark , fermion , crossover , abelian group , quantum electrodynamics , condensed matter physics , mathematics , archaeology , history , combinatorics , artificial intelligence , computer science
We investigate the deconfining phase transition in SU(3) pure gauge theoryand in full QCD with two flavors of staggered fermions. The phase transition isdetected by measuring the free energy in presence of an abelian monopolebackground field. In the pure gauge case our finite size scaling analysis is inagreement with the well known presence of a weak first order phase transition.In the case of 2 flavors full QCD we find, using the standard pure gauge andstaggered fermion actions, that the phase transition is consistent with weakfirst order, contrary to the expectation of a crossover for not too large quarkmasses and in agreement with results obtained by the Pisa group.Comment: 23 pages, 11 figures, 4 tables (minor typos corrected, references updated, accepted for publication on JHEP

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