Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-04-29
Physics
High Energy Physics
High Energy Physics - Theory
16 pages
Scientific paper
We revisit the question of whether or not one can perform reliable semiclassical QCD computations at zero temperature. We study correlation functions with no perturbative contributions, and organize the problem by means of the operator product expansion, establishing a precise criterion for the validity of a semiclassical calculation. For $N_f>N$, a systematic computation is possible; for $N_f
Dine Michael
Festuccia Guido
Pack Lawrence
Wu Weitao
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