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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)

- J Rolf, M Della Morte, +5 authors R Sommer
- 2003

We present a computation of the decay constant FBs in quenched QCD. Our strategy is to combine new precise data from the static approximation with an interpolation of the decay constant around the charm quark mass region. This computation is the first step in demonstrating the feasability of a strategy for FB in full QCD. The continuum limits in the static… (More)

- A Kustermann, C Zoppini, B Tassis, M Della Morte, G Colucci, U Nicolini
- Prenatal diagnosis
- 1996

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)

- F Knechtli, M Della Morte, J Rolf, R Sommer, I Wetzorke, U Wolff
- 2002

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)

- M Della Morte, R Frezzotti, +4 authors U Wolff
- 2002

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)

- B Bunk, M Della Morte, K Jansen, F Knechtli
- 2004

We address the locality problem arising in simulations, which take the square root of the staggered fermion determinant as a Boltzmann weight to reduce the number of dynamical quark tastes from four to two. We study analytically and numerically the square root of the staggered fermion operator as a candidate to define a two taste theory from first… (More)

- M Della Morte, R Frezzotti, J Heitger, J Rolf, R Sommer, U Wolff
- 2008

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)

- M Della Morte, S Dürr, +4 authors R Sommer
- 2003

We present a numerical study for different discretisations of the static action, concerning cut-off effects and the growth of statistical errors with Euclidean time. An error reduction by an order of magnitude can be obtained with respect to the Eichten-Hill action, for time separations beyond 1.3 fm, keeping discretization errors small. The best actions… (More)

- M Della Morte, R Frezzotti, J Heitger, S Sint
- 2000

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)