High Energy Physics - Phenomenology
[Submitted on 2 May 2011 (v1), last revised 30 Oct 2011 (this version, v2)]
Title:Theta vacuum effects on QCD phase diagram
View PDFAbstract:Theta vacuum effects on the QCD phase structure in the \mu-T plane are studied by using the Polyakov-loop extended Nambu-Jona-Lasinio model and its extension, where \mu is the quark chemical potential and T is temperature, respectively. As the parameter \theta of the theta vacuum increases, the chiral transition becomes stronger. For large \theta, it eventually becomes first order even at zero \mu.
Submission history
From: Yuji Sakai [view email][v1] Mon, 2 May 2011 19:16:47 UTC (27 KB)
[v2] Sun, 30 Oct 2011 06:30:47 UTC (31 KB)
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