2008/02/29 by Krzysztof Cichy, K. Cichy, J. González López +6 · 1 citation
Physics and Astronomy · #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.1016/j.nuclphysb.2008.03.004
published as Nucl.Phys.B800:94-108,2008 · 19 pages, 5 figures, 3 tables. Minor modifications. Results and conclusions unchanged. Accepted for publication on Nucl. Phys. B
arxiv created 2008/03/06 · openalex publication_date 2008/03/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
We study cutoff effects at tree-level of perturbation theory for maximally twisted mass Wilson, overlap and the recently proposed Creutz fermions. We demonstrate that all three kind of lattice fermions exhibit the expected O(a2) scaling behaviour in the lattice spacing. In addition, the sizes of these cutoff effects are comparable for the three kinds of lattice fermions considered here. Furthermore, we analyze situations when twisted mass fermions are not exactly at maximal twist and when overlap fermions are studied in comparison to twisted mass fermions when the quark masses are not matched.