Phase Transition Critical Flavor Number of QCD

Abstract

We present an entirely perturbative QCD determination of the critical phase transition flavor number $N_f^{cr}$ of QCD. The results obtained are compared with various determinations of $N_f^{cr}$ by non-pertrubative methods, including lattice QCD. The wider physics implication of the existence of the Banks-Zaks regime of QCD with only weakly interacting quarks, is discussed briefly.

12 pages, 1 Table

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