F. De Soto

Ghost-gluon coupling, power corrections and Λ MS from twisted-mass lattice QCD at N f = 2

We present results concerning the non-perturbative evaluation of the ghost-gluon running QCD coupling constant from

Instantons and the A (2) condensate

N_f=2

Remarks on the determination of the Landau gauge OPE for the asymmetric three gluon vertex

twisted-mass lattice calculations. A novel method for calibrating the lattice spacing, independent of the string tension and hadron spectrum is presented with results in agreement with previous estimates. The value of

Strong Running Coupling at τ and Z 0 Mass Scales from Lattice QCD

\Lambda_{\overline{MS}}

High statistics determination of the strong coupling constant in Taylor scheme and its OPE Wilson coefficient from lattice QCD with a dynamical charm

is computed from the running of the QCD coupling only after extrapolating to zero dynamical quark mass and after removing a non-perturbative OPE contribution that is assumed to be dominated by the dimension-two

On the zero crossing of the three-gluon vertex

\VEV{A^2}

Modified instanton profile effects from lattice Green functions

gluon condensate. The effect due to the dynamical quark mass in the determination of

Geographical, seasonal and depth variation in sinking particle speeds in the North Atlantic

\Lams

A Transparent expression of the A**2 condensate's renormalization

is discussed.

Instantons and condensate

We argue that the