6 papers · 1 filter
Light hadron and diquark spectroscopy in quenched QCD with overlap quarks on a large lattice
Ronald Babich, Federico Berruto, Nicolas Garron +5
A simulation of quenched QCD with the overlap Dirac operator has been completed using 100 Wilson gauge configurations at beta = 6 on an 18^3 x 64 lattice and at beta = 5.85 on a 14…
Neutron Electric Dipole Moment with Domain Wall Quarks
F. Berruto, T. Blum, K. Orginos +1
We present preliminary results for nucleon dipole moments computed with domain wall fermions. Our main target is the electric dipole moment of the neutron arising from the theta te…
Electroweak penguins and SUSY K^0-\bar K^0 mixing with Neuberger quarks
Federico Berruto, Nicolas Garron, Christian Hoelbling +5
We present results for Delta I=3/2 and Delta S=2 matrix elements relevant for CP violation in K->Pi Pi decays and for the K_S-K_L mass difference in the standard model and beyond.…
Preliminary results from a simulation of quenched QCD with overlap fermions on a large lattice
Federico Berruto, Nicolas Garron, Christian Hoelbling +3
We simulate quenched QCD with the overlap Dirac operator. We work with the Wilson gauge action at beta=6 on an 18^3x64 lattice. We calculate quark propagators for a single source p…
Chiral Symmetry Breaking in Strongly Coupled 1+1 Dimensional Lattice Gauge Theories
F. Berruto, G. Grignani, P. Sodano
We analyse - within the hamiltonian formalism with staggered fermions - the patterns of chiral symmetry breaking for the strongly coupled Schwinger and -color `t Hoo…
Quantum Spin-1/2 Antiferromagnetic Chains and Strongly Coupled Multiflavor Schwinger Models
F. Berruto, G. Grignani, G. W. Semenoff +1
We review the correspondence between strongly coupled lattice multiflavor Schwinger models and SU(N) antiferromagnetic chains. We show that finding the low lying states of the gaug…