507 citations · 2.6k across the 38 of their papers we have counts for
5 papers · 1 filter
Lattice 2001: Reflections
P. Hasenfratz
A few subjects which strongly intertwine our field are discussed: K --> Pi Pi decay, chiral symmetry on the lattice and a few other selected topics. Open questions are touched also…
Asymptotic freedom with discrete spin variables?
Peter Hasenfratz, Ferenc Niedermayer
We study the critical behaviour of the 2d dodecahedron spin model and investigate the conjecture that the discrete model describes the same continuum theory as the O(3) non-linear…
Nonstandard Cutoff Effects in the Nonlinear Sigma Model
Martin Hasenbusch, Peter Hasenfratz, Ferenc Niedermayer +2
High precision measurements of the renormalized zero-momentum 4-point coupling g_R and of the Luscher-Weisz-Wolff running coupling gbar(L) = L*m(L) performed with two different lat…
First results from a parametrized Fixed-Point QCD action
P. Hasenfratz, S. Hauswirth, K. Holland +2
We have constructed a new fermion action which is an approximation to the (chirally symmetric) Fixed-Point action, containing the full Clifford algebra with couplings inside a hype…
Chiral measurements with the Fixed-Point Dirac operator and construction of chiral currents
P. Hasenfratz, S. Hauswirth, K. Holland +2
In this preliminary study, we examine the chiral properties of the parametrized Fixed-Point Dirac operator D^FP, see how to improve its chirality via the Overlap construction, meas…