We compare overlap fermions, which are chirally invariant, and Wilson twisted mass fermions in the approach to the chiral limit. Our quenched simulations reveal that with both formulations of lattice fermions pion masses of O(250 MeV) can be reached in practical simulations. Our comparison is done at a fixed lattice spacing a ≃ 0.123 fm. Several quantities are measured, such as hadron masses and pseudoscalar decay constants. © 2004 Elsevier B.V. All rights reserved.

Comparison between overlap and twisted mass fermions towards the chiral limit / W., Bietenholz; S., Capitani; T., Chiarappa; M., Hasenbusch; K., Jansen; K. I., Nagai; Papinutto, MAURO LUCIO; L., Scorzato; S., Shcheredin; A., Shindler; C., Urbach; U., Wenger; I., Wetzorke. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - 140:(2005), pp. 683-685. (Intervento presentato al convegno Lattice 2004 tenutosi a Batavia; USA) [10.1016/j.nuclphysbps.2004.11.370].

Comparison between overlap and twisted mass fermions towards the chiral limit

PAPINUTTO, MAURO LUCIO;
2005

Abstract

We compare overlap fermions, which are chirally invariant, and Wilson twisted mass fermions in the approach to the chiral limit. Our quenched simulations reveal that with both formulations of lattice fermions pion masses of O(250 MeV) can be reached in practical simulations. Our comparison is done at a fixed lattice spacing a ≃ 0.123 fm. Several quantities are measured, such as hadron masses and pseudoscalar decay constants. © 2004 Elsevier B.V. All rights reserved.
2005
Lattice 2004
quantum chromodynamics; lattices; mass fermions
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
Comparison between overlap and twisted mass fermions towards the chiral limit / W., Bietenholz; S., Capitani; T., Chiarappa; M., Hasenbusch; K., Jansen; K. I., Nagai; Papinutto, MAURO LUCIO; L., Scorzato; S., Shcheredin; A., Shindler; C., Urbach; U., Wenger; I., Wetzorke. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - 140:(2005), pp. 683-685. (Intervento presentato al convegno Lattice 2004 tenutosi a Batavia; USA) [10.1016/j.nuclphysbps.2004.11.370].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/498453
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