6 papers
Wilson fermions quark bilinears to three loops
F. Di Renzo, A. Mantovi, V. Miccio +2
Quark currents renormalization constants can in principle be safely computed in lattice perturbation theory. In practice, traditional lattice perturbative computations are quite cu…
Four-loop plaquette in 3d with a mass regulator
C. Torrero, F. Di Renzo, V. Miccio +2
The QCD free energy can be studied by dimensional reduction to a three-dimensional (3d) effective theory, whereby non-perturbative lattice simulations become less demanding. To con…
Fermionic observables in Numerical Stochastic Perturbation Theory
V. Miccio, F. Di Renzo, A. Mantovi +2
We present technical details of fermionic observables computations in NSPT. In particular we discuss the construction of composite operators starting from the inverse Dirac operato…
The n_f=2 residual mass in lattice HQET to alpha^3 order
F. Di Renzo, L. Scorzato
We compute the so called residual mass in Lattice Heavy Quark Effective Theory to alpha^3 order in the n_f=2 (unquenched) case. The control of this additive mass renormalization is…
Renormalons on the Lattice and the OPE for the plaquette: a status report
F. Di Renzo
The first ten coefficients in the perturbative expansion of the plaquette in Lattice SU(3) are computed both on a 8^4 and on a 24^4 lattice. They are shown to be fully consistent w…
Search for 1/p^2 Corrections to the Running QCD Coupling
G. Burgio, F. Di Renzo, C. Parrinello +1
We investigate the occurrence of power terms in the running QCD coupling by analysing non-perturbative measurements of alpha_s (p) at low momenta obtained from the lattice three-gl…