8 papers
Non-Perturbatively Improved Quenched Hadron Spectroscopy
A. Cucchieri, M. Masetti, T. Mendes +1
We make a quenched lattice simulation of hadron spectroscopy at beta=6.2 with the Wilson action non-perturbatively improved. With respect to the unimproved case, the estimate of th…
QCD at finite temperature and partially negative flavour numbers
G. M. de Divitiis, R. Frezzotti, M. Masetti +1
We study dynamical fermion effects in lattice QCD at finite temperature. The method adopted is basically the extrapolation from negative flavour numbers already tested at zero temp…
Evidence for eta prime - pion splitting in unquenched lattice QCD
R. Frezzotti, M. Masetti, R. Petronzio
We perform an extrapolation from negative to positive flavour numbers of full QCD lattice estimates of the mass. The extrapolations are carried out by keeping and mass…
Dynamical flavour dependence of static heavy meson decay constants on the lattice
G. M. de Divitiis, R. Frezzotti, M. Masetti +1
We study the dynamical flavour dependence of the lattice estimates of the heavy meson decay constant in the static limit. We perform the analysis by considering negative flavour nu…
Pseudofermion observables for static heavy meson decay constants on the lattice
G. M. de Divitiis, R. Frezzotti, M. Masetti +1
A method based on the Monte Carlo inversion of the Dirac operator on the lattice provides low noise results for the correlations entering the definition of the heavy meson decay co…
Light meson decay constants beyond the quenched approximation
G. M. de Divitiis, R. Frezzotti, M. Guagnelli +2
We calculate the effects of including dynamical fermion loops in the lattice QCD estimates of meson decay constants, by extrapolating the results from negative flavour numbers afte…