کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10723000 | 1033823 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vacuum phase transition at nonzero baryon density
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
It is argued that the dominant contribution to the interaction of quark-gluon plasma at moderate T⩾Tc is given by the nonperturbative vacuum field correlators. Basing on that nonperturbative equation of state of quark-gluon plasma is computed and in the lowest approximation expressed in terms of absolute values of Polyakov lines for quarks and gluons Lfund(T),Ladj(T)=(Lfund)9/4 known from lattice and analytic calculations. Phase transition at any μ is described as a transition due to vanishing of one of correlators, DE(x), which implies the change of gluonic condensate ÎG2. Resulting transition temperature Tc(μ) is calculated in terms of ÎG2 and Lfund(Tc). The phase curve Tc(μ) is in a good agreement with lattice data. In particular Tc(0)=0.27; 0.19; 0.17 GeV for nf=0,2,3 and fixed ÎG2=0.0035 GeV4.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 650, Issue 1, 21 June 2007, Pages 36-40
Journal: Physics Letters B - Volume 650, Issue 1, 21 June 2007, Pages 36-40
نویسندگان
Yu.A. Simonov, M.A. Trusov,