Some remarks on O(a) improved twisted mass QCD

Twisted mass QCD (tmQCD) has been introduced as a solution to the problem of unphysical fermion zero modes in lattice QCD with quarks of the Wilson type. We here argue that O(a) improvement of the tmQCD action and simple quark bilinear operators can be more economical than in the standard framework....

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Detalles Bibliográficos
Autores principales: Frezzotti, Roberto, Sint, Stefan
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0920-5632(01)01852-7
http://cds.cern.ch/record/523158
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author Frezzotti, Roberto
Sint, Stefan
author_facet Frezzotti, Roberto
Sint, Stefan
author_sort Frezzotti, Roberto
collection CERN
description Twisted mass QCD (tmQCD) has been introduced as a solution to the problem of unphysical fermion zero modes in lattice QCD with quarks of the Wilson type. We here argue that O(a) improvement of the tmQCD action and simple quark bilinear operators can be more economical than in the standard framework. In particular, an improved and renormalized estimator of the pion decay constant in two-flavour QCD is available, given only the Sheikholeslami-Wohlert coefficient c_sw and an estimate of the critical mass m_c.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-5231582023-03-14T20:20:09Zdoi:10.1016/S0920-5632(01)01852-7http://cds.cern.ch/record/523158engFrezzotti, RobertoSint, StefanSome remarks on O(a) improved twisted mass QCDParticle Physics - LatticeTwisted mass QCD (tmQCD) has been introduced as a solution to the problem of unphysical fermion zero modes in lattice QCD with quarks of the Wilson type. We here argue that O(a) improvement of the tmQCD action and simple quark bilinear operators can be more economical than in the standard framework. In particular, an improved and renormalized estimator of the pion decay constant in two-flavour QCD is available, given only the Sheikholeslami-Wohlert coefficient c_sw and an estimate of the critical mass m_c.Twisted mass QCD (tmQCD) has been introduced as a solution to the problem of unphysical fermion zero modes in lattice QCD with quarks of the Wilson type. We here argue that O(a) improvement of the tmQCD action and simple quark bilinear operators can be more economical than in the standard framework. In particular, an improved and renormalized estimator of the pion decay constant in two-flavour QCD is available, given only the Sheikholeslami-Wohlert coefficient c_sw and an estimate of the critical mass m_c.hep-lat/0110140CERN-TH-2001-279CERN-TH-2001-279oai:cds.cern.ch:5231582001-10-16
spellingShingle Particle Physics - Lattice
Frezzotti, Roberto
Sint, Stefan
Some remarks on O(a) improved twisted mass QCD
title Some remarks on O(a) improved twisted mass QCD
title_full Some remarks on O(a) improved twisted mass QCD
title_fullStr Some remarks on O(a) improved twisted mass QCD
title_full_unstemmed Some remarks on O(a) improved twisted mass QCD
title_short Some remarks on O(a) improved twisted mass QCD
title_sort some remarks on o(a) improved twisted mass qcd
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/S0920-5632(01)01852-7
http://cds.cern.ch/record/523158
work_keys_str_mv AT frezzottiroberto someremarksonoaimprovedtwistedmassqcd
AT sintstefan someremarksonoaimprovedtwistedmassqcd

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