Determination of CA in three-flavour lattice QCD with Wilson fermions and tree-level improved gauge action

John Bulava; Michele Della Morte; Jochen Heitger; Christian Wittemeier

Determination of C_A in three-flavour lattice QCD with Wilson fermions and tree-level improved gauge action

John Bulava
, Michele Della Morte
, Jochen Heitger
, Christian Wittemeier

Publikation: Bidrag til tidsskrift › Konferenceartikel › Forskning › peer review

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Abstract

We report on an ongoing non-perturbative determination of the improvement coefficient of the axial current, $c_\mathrm A$, with three flavours of dynamical $\mathrm O(a)$ improved Wilson quarks and tree-level Symanzik improved gauge action. Our computations are based on simulations with the openQCD code. The improvement condition for a range of couplings is formulated with Schr\"odinger functional boundary conditions and imposed along a line of constant physics in parameter space. Our analysis involves correlation functions with boundary wave functions such that a large sensitivity to $c_\mathrm A$ can be reached by exploiting the PCAC relation with two different pseudoscalar states.

Originalsprog	Engelsk
Tidsskrift	P o S - Proceedings of Science
Antal sider	7
ISSN	1824-8039
Status	Udgivet - 12. dec. 2013
Udgivet eksternt	Ja
Begivenhed	31st International Symposium on Lattice Field Theory LATTICE 2013: LATTICE 2013 - Mainz, Tyskland Varighed: 29. jul. 2013 → 3. aug. 2013

Konference

Konference	31st International Symposium on Lattice Field Theory LATTICE 2013
Land/Område	Tyskland
By	Mainz
Periode	29/07/2013 → 03/08/2013

Bibliografisk note

7 pages, 3 figures, presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany

Emneord

hep-lat

Dokumenter og links

Determination of cA in three-flavour lattice QCD withForlagets udgivne version, 274 KBLicens: CC BY-NC-SA

https://arxiv.org/abs/1312.3591Licens: CC BY-NC-SA

SDU link

Tjek adgangen til materialet i Syddansk Universitetsbiblioteks søgemaskine

Citationsformater

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title = "Determination of CA in three-flavour lattice QCD with Wilson fermions and tree-level improved gauge action",

abstract = " We report on an ongoing non-perturbative determination of the improvement coefficient of the axial current, \$c\_\textbackslash{}mathrm A\$, with three flavours of dynamical \$\textbackslash{}mathrm O(a)\$ improved Wilson quarks and tree-level Symanzik improved gauge action. Our computations are based on simulations with the openQCD code. The improvement condition for a range of couplings is formulated with Schr\textbackslash{}{"}odinger functional boundary conditions and imposed along a line of constant physics in parameter space. Our analysis involves correlation functions with boundary wave functions such that a large sensitivity to \$c\_\textbackslash{}mathrm A\$ can be reached by exploiting the PCAC relation with two different pseudoscalar states. ",

keywords = "hep-lat",

author = "John Bulava and Morte, \{Michele Della\} and Jochen Heitger and Christian Wittemeier",

note = "7 pages, 3 figures, presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany; 31st International Symposium on Lattice Field Theory LATTICE 2013 : LATTICE 2013 ; Conference date: 29-07-2013 Through 03-08-2013",

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journal = "P o S - Proceedings of Science",

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TY - GEN

T1 - Determination of CA in three-flavour lattice QCD with Wilson fermions and tree-level improved gauge action

AU - Bulava, John

AU - Morte, Michele Della

AU - Heitger, Jochen

AU - Wittemeier, Christian

N1 - 7 pages, 3 figures, presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany

PY - 2013/12/12

Y1 - 2013/12/12

N2 - We report on an ongoing non-perturbative determination of the improvement coefficient of the axial current, $c_\mathrm A$, with three flavours of dynamical $\mathrm O(a)$ improved Wilson quarks and tree-level Symanzik improved gauge action. Our computations are based on simulations with the openQCD code. The improvement condition for a range of couplings is formulated with Schr\"odinger functional boundary conditions and imposed along a line of constant physics in parameter space. Our analysis involves correlation functions with boundary wave functions such that a large sensitivity to $c_\mathrm A$ can be reached by exploiting the PCAC relation with two different pseudoscalar states.

AB - We report on an ongoing non-perturbative determination of the improvement coefficient of the axial current, $c_\mathrm A$, with three flavours of dynamical $\mathrm O(a)$ improved Wilson quarks and tree-level Symanzik improved gauge action. Our computations are based on simulations with the openQCD code. The improvement condition for a range of couplings is formulated with Schr\"odinger functional boundary conditions and imposed along a line of constant physics in parameter space. Our analysis involves correlation functions with boundary wave functions such that a large sensitivity to $c_\mathrm A$ can be reached by exploiting the PCAC relation with two different pseudoscalar states.

KW - hep-lat

M3 - Conference article

SN - 1824-8039

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

T2 - 31st International Symposium on Lattice Field Theory LATTICE 2013

Y2 - 29 July 2013 through 3 August 2013

ER -