Dynamical Twisted Mass Fermions with Light Quarks: Simulation and Analysis Details

In a recent paper [hep-lat/0701012] we presented precise lattice QCD results of our European Twisted Mass Collaboration (ETMC). They were obtained by employing two mass-degenerate flavours of twisted mass fermions at maximal twist. In the present paper we give details on our simulations and the comp...

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Bibliographic Details
Published in:arXiv.org 2008-11
Main Authors: Boucaud, Ph, Dimopoulos, P, Farchioni, F, Frezzotti, R, Gimenez, V, Herdoiza, G, Jansen, K, Lubicz, V, Michael, C, Münster, G, Palao, D, Rossi, G C, Scorzato, L, Shindler, A, Simula, S, Sudmann, T, Urbach, C, Wenger, U, Collaboration, ETM
Format: Article
Language:English
Subjects:
Algorithms
Chiral dynamics
Computer simulation
Correlators
Fermions
Flavor (particle physics)
Perturbation methods
Perturbation theory
Quantum chromodynamics
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Summary:In a recent paper [hep-lat/0701012] we presented precise lattice QCD results of our European Twisted Mass Collaboration (ETMC). They were obtained by employing two mass-degenerate flavours of twisted mass fermions at maximal twist. In the present paper we give details on our simulations and the computation of physical observables. In particular, we discuss the problem of tuning to maximal twist, the techniques we have used to compute correlators and error estimates. In addition, we provide more information on the algorithm used, the autocorrelation times and scale determination, the evaluation of disconnected contributions and the description of our data by means of chiral perturbation theory formulae.
ISSN:2331-8422
DOI:10.48550/arxiv.0803.0224