Browsing Τμήμα Φυσικής / Department of Physics by Subject "Running coupling constant"

Now showing items 1-2 of 2

    • Article  

      The three-loop β-function of QCD with the clover action 

      Bode, Achim; Panagopoulos, Haralambos G. (2002)
      We calculate, to 3 loops in perturbation theory, the bare β-function of QCD, formulated on the lattice with the clover fermionic action. The dependence of our result on the number of colors N, the number of fermionic flavors ...
    • Article  

      The three-loop β-function of SU(N) lattice gauge theories with Wilson fermions 

      Christou, Chris; Feo, A.; Panagopoulos, Haralambos G.; Vicari, E. (1998)
      We calculate the third coefficient of the lattice β-function associated with the Wilson formulation for both gauge fields and fermions. This allows us to evaluate the three-loop correction (linear in g2 0) to the relation ...