Continuum-Limit Scaling of Chirally Symmetric Fermions as Valence Quarks

Krzysztof Cichy (), Gregorio Herdoiza () and Karl Jansen ()
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Krzysztof Cichy: Adam Mickiewicz University, Faculty of Physics
Gregorio Herdoiza: DESY, NIC
Karl Jansen: DESY, NIC

A chapter in High Performance Computing in Science and Engineering, Garching/Munich 2009, 2010, pp 451-462 from Springer

Abstract: Abstract We present the results of mixed action lattice QCD simulations, employing dynamical twisted mass fermions in the sea sector and chirally symmetric overlap valence fermions. The aim is testing the continuum limit scaling of physical observables and by that, eventually address the question of the universality of such a mixed action approach. We focus on the study of the pion decay constant by using simulated pion masses of around 300 MeV. To render the computation practical, we impose a fixed volume corresponding to a lattice size L≈1.3 fm. We furthermore review the techniques used to deal with overlap fermions and discuss the computational details of our numerical studies.

Keywords: Dirac Operator; Chiral Symmetry; Pion Mass; Valence Quark; Twisted Mass (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-13872-0_38

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DOI: 10.1007/978-3-642-13872-0_38

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