QCD with two dynamical flavors of chirally improved quarks

C. B. Lang, Pushan Majumdar, and Wolfgang Ortner (Bern-Graz-Regensburg (BGR) Collaboration)
Phys. Rev. D 73, 034507 – Published 27 February 2006

Abstract

Considering Ginsparg-Wilson type fermions dynamically in lattice QCD simulations is a challenging task. The hope is to be able to approach smaller pion masses and to eventually reach physical situations. The price to pay is substantially higher computational costs. Here we discuss first results of a dynamical implementation of the so-called chirally improved fermions, a Dirac operator that obeys the Ginsparg-Wilson condition approximately. The simulation is for two species of mass-degenerate quarks on 123×24 lattices with spatial size up to 1.55 fm. Implementation of the hybrid Monte-Carlo algorithm and an analysis of the results are presented.

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  • Received 16 December 2005

DOI:https://doi.org/10.1103/PhysRevD.73.034507

©2006 American Physical Society

Authors & Affiliations

C. B. Lang*, Pushan Majumdar, and Wolfgang Ortner (Bern-Graz-Regensburg (BGR) Collaboration)

  • Institut für Physik, FB Theoretische Physik, Universität Graz, A-8010 Graz, Austria

  • *Electronic address: christian.lang@uni-graz.at
  • Electronic address: pushan@uni-muenster.de
  • Electronic address: wolfgang.ortner@uni-graz.at

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Issue

Vol. 73, Iss. 3 — 1 February 2006

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