M. Della Morte

Learn More
We review lattice results related to pion, kaon, Dand B-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the lightquark masses, the form factor f+(0), arising in semileptonic K → π transition at zero momentum transfer, as well as the decay-constant ratio fK /(More)
Large cutoff effects of dynamical Wilson fermions ∗ R. Sommer, S. Aoki, M. Della Morte, R. Hoffmann, T. Kaneko, F. Knechtli, J. Rolf, I. Wetzorke and U. Wolff (ALPHA, CP-PACS and JLQCD Collaborations) DESY Zeuthen, Platanenallee 6, 15738 Zeuthen, Germany CERN–TH, CH–1211 Geneva 23, Switzerland Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki(More)
Fourteen fetuses at risk of Varicella-Zoster virus (VZV) infection underwent prenatal diagnosis at 10-24 weeks' gestation by a combination of chorionic villus sampling, amniocentesis, and fetal blood sampling. Polymerase chain reaction (PCR) was done on fetal and placental tissues, using primers which define a 221 bp region of the gene coding for the 44 kD(More)
We present first results for the step scaling function σP of the renormalization factor ZP of the pseudoscalar density. The simulations are performed within the framework of the Schrödinger functional with two flavors of O(a) improved Wilson fermions. The knowledge of σP is required to compute the renormalization group invariant quark masses. We also study(More)
We report on the latest results on the running coupling of two flavour QCD in the Schrödinger functional scheme. Results for the step scaling function are obtained from simulations on lattices L/a = 8 and L/a = 16 which confirm the first results from lattices L/a = 4, 5, 6 presented one year ago by the ALPHA collaboration. We also discuss some algorithmic(More)
We present a non-perturbative computation of the running of the coupling αs in QCD with two flavours of dynamical fermions in the Schrödinger functional scheme. We improve our previous results by a reliable continuum extrapolation. The Λparameter characterizing the high-energy running is related to the value of the coupling at low energy in the continuum(More)
We present a scaling study of lattice QCD with O(a) improved Wilson fermions and a chirally twisted mass term. In order to get precise results with a moderate computational effort, we have considered a system of physical size of 0.75 × 1.5 fm with Schrödinger functional boundary conditions in the quenched approximation. Looking at meson observables in the(More)