More on the QCD phase diagram at finite temperatures

Gavai, R. V. ; Potvin, J. ; Sanielevici, S. (1988) More on the QCD phase diagram at finite temperatures Physical Review D, 38 (10). pp. 3266-3276. ISSN 0556-2821

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In order to broaden the existing knowledge about the phase diagram of QCD, we use a Langevin algorithm to study finite-temperature QCD on an 83× 4 lattice with variable flavor number, quark mass, and gauge coupling. We concentrate on the search for first-order transitions for small flavor number and light-quark masses. We find general agreement with the predictions of effective models of the finite-temperature deconfinement and chiral-symmetry-restoration phase-transition mechanisms. In particular, we find that the deconfinement transition extends to lower quark masses as nf, the number of quark flavors, decreases. Nonperturbative fermionic effects are found to be significant for very light quarks even for nf=0.1AE.

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Source:Copyright of this article belongs to American Physical Society.
ID Code:14091
Deposited On:12 Nov 2010 09:09
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