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7 papers · 2 filters
B-parameters for SUSY Operators
C. R. Allton, L. Conti, A. Donini +5
We present the first lattice measurement, using Non Perturbative Renormalization Method, of the B-parameters of the dimension-six four-fermion operators relevant for the supersymme…
Quark masses and the chiral condensate with a non-perturbative renormalization procedure
V. Gimenez, L. Giusti, F. Rapuano +2
We determine the quark masses and the chiral condensate in the MSbar scheme at NNLO from Lattice QCD in the quenched approximation at beta=6.0, beta=6.2 and beta=6.4 using both the…
Non-perturbative running of the average momentum of non-singlet parton densities
M. Guagnelli, K. Jansen, R. Petronzio
We determine non-perturbatively the anomalous dimensions of the second moment of non-singlet parton densities from a continuum extrapolation of results computed in quenched lattice…
Moments of parton evolution probabilities on the lattice within the Schroedinger functional scheme
A. Bucarelli, F. Palombi, R. Petronzio +1
We define, within the Schroedinger functional scheme (SF), the matrix elements of the twist-2 operators corresponding to the first two moments of non-singlet parton densities. We p…
The QCD Chiral Condensate from the Lattice
L. Giusti, F. Rapuano, M. Talevi +1
We determine the chiral condensate from simulations of quenched lattice QCD with Wilson fermions. Our measurements have been obtained with high statistics at three values of the ga…
B-parameters for DeltaS = 2 Supersymmetric Operators
C. R. Allton, L. Conti, A. Donini +5
We present a calculation of the matrix elements of the most general set of DeltaS=2 dimension-six four-fermion operators. The values of the matrix elements are given in terms of th…
Comparison of Improved and Unimproved Quenched Hadron Spectroscopy
A. Cucchieri, T. Mendes, R. Petronzio
We make a comparison between our quenched-hadron-spectroscopy results for the non-perturbatively-improved Wilson action and the corresponding unimproved case, at beta=6.2 on the sa…