The running coupling of 8 flavors and 3 colors

Zoltan Fodor, Kieran Holland, Julius Kuti, Santanu Mondal, Daniel Nogradi, Chik Him Wong

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Abstract: We compute the renormalized running coupling of SU(3) gauge theory coupled to Nf = 8 flavors of massless fundamental Dirac fermions. The recently proposed finite volume gradient flow scheme is used. The calculations are performed at several lattice spacings allowing for a controlled continuum extrapolation. The results for the discrete β-function show that it is monotonic without any sign of a fixed point in the range of couplings we cover. As a cross check the continuum results are compared with the well-known perturbative continuum β-function for small values of the renormalized coupling and perfect agreement is found.

Original languageEnglish (US)
Article number19
JournalJournal of High Energy Physics
Issue number6
StatePublished - Jun 9 2015

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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