N(f)(3)g(6) term in the pressure of hot QCD

Gynther A, Kurkela A, Vuorinen A. N(f)(3)g(6) term in the pressure of hot QCD. Physical Review D. 2009;80(9): 096002.We determine the first independent part of the g(6) coefficient in the weak coupling expansion of the QCD pressure at high temperatures, the one proportional to the maximal power of the number of quark flavors N(f). In addition to introducing and developing computational methods that can be used in evaluating other parts of the expansion, our calculation provides a result that becomes dominant in the limit of large N(f) and a fixed effective coupling g(eff)(2)equivalent to g(2)N(f)/2