The Symanzik analysis of correlators in lattice QCD with maximally twisted Wilson fermions reveals that there exist cutoff artifacts which tend to become large as the quark mass gets small. We show that these effects can be reduced to a negligible level by either introducing the clover term in the action or, as already suggested in the literature, by a suitable choice of the critical mass. Recent simulation data support these conclusions. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-ShareAlike Licence.
CUTOFF EFFECTS IN MAXIMALLY TWISTED LQCD / Giancarlo, Rossi; Roberto, Frezzotti; Martinelli, Guido. - LAT2005:(2005), pp. 285-285. (Intervento presentato al convegno Lattice 2005 tenutosi a Dublin; Ireland nel July 25-30 2005).
CUTOFF EFFECTS IN MAXIMALLY TWISTED LQCD
MARTINELLI, Guido
2005
Abstract
The Symanzik analysis of correlators in lattice QCD with maximally twisted Wilson fermions reveals that there exist cutoff artifacts which tend to become large as the quark mass gets small. We show that these effects can be reduced to a negligible level by either introducing the clover term in the action or, as already suggested in the literature, by a suitable choice of the critical mass. Recent simulation data support these conclusions. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-ShareAlike Licence.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
