13 citations · 25 across the 3 of their papers we have counts for
8 papers · 1 filter
Towards Weyl fermions on the lattice without artefacts
Peter Hasenfratz, Reto von Allmen
In spite of the breakthrough in non-perturbative chiral gauge theories during the last decade, the present formulation has stubborn artefacts. Independently of the fermion represen…
First results in QCD with 2+1 light flavors using the fixed-point action
Anna Hasenfratz, Peter Hasenfratz, Dieter Hierl +2
This is a progress report on 2+1 flavor simulation with the FP action on a lattice with spatial size L=1.2fm. Since m_{ud} is quite small in our simulation we are in the delta regi…
Lattice Regularization and Symmetries
Peter Hasenfratz, Ferenc Niedermayer, Reto von Allmen
Finding the relation between the symmetry transformations in the continuum and on the lattice might be a nontrivial task as illustrated by the history of chiral symmetry. Lattice a…
Simulating Full QCD with the Fixed Point Action
Anna Hasenfratz, Peter Hasenfratz, Ferenc Niedermayer
Due to its complex structure the parametrized fixed point action can not be simulated with the available local updating algorithms. We constructed, coded, and tested an updating pr…
New results on cut-off effects in spectroscopy with the fixed point action
Peter Hasenfratz, K. Jimmy Juge, Ferenc Niedermayer
Our study on the cut-off effects in quenched light hadron spectroscopy and pion scattering length with the fixed point action is extended by results obtained at a lattice spacing a…
Quenched spectroscopy with fixed-point and chirally improved fermions
BGR Collaboration, Christof Gattringer, Meinulf Gockeler +10
We present results from quenched spectroscopy calculations with the parametrized fixed-point and the chirally improved Dirac operators. Both these operators are approximate solutio…