Non-perturbative improvement of the axial current with three dynamical flavors and the Iwasaki gauge action

T. Kaneko, S. Aoki, M. Della Morte, S. Hashimoto, R. Hoffmann, R. Sommer

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Abstrakt

We perform a non-perturbative determination of the improvement coefficient c_A to remove O(a) discretization errors in the axial vector current in three-flavor lattice QCD with the Iwasaki gauge action and the standard O$(a)$-improved Wilson quark action. An improvement condition with a good sensitivity to c_A is imposed at constant physics. Combining our results with the perturbative expansion, c_A is now known rather precisely for 1/a \gtrsim 1.6 GeV.
OriginalsprogEngelsk
TidsskriftJournal of High Energy Physics
Vol/bind2007
ISSN1126-6708
DOI
StatusUdgivet - 12. mar. 2007
Udgivet eksterntJa

Emneord

  • hep-lat

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