Non-perturbative renormalization of the axial current with dynamical Wilson fermions

Michele Della Morte, Roland Hoffmann, Francesco Knechtli, Rainer Sommer, Ulli Wolff

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

We present a new normalization condition for the axial current, derived from the PCAC relation with non-vanishing quark mass. This condition is expected to reduce mass effects in the chiral extrapolation of the results for the normalization factor Z_A. The application to the two-flavor theory with improved Wilson fermions shows that this expectation is indeed fulfilled. Using the Schroedinger functional setup we calculate Z_A(g_0^2) as well as the vector current normalization factor Z_V(g_0^2) for beta = 6/g_0^2 >= 5.2.
OriginalsprogUdefineret/Ukendt
TidsskriftJHEP
ISSN1126-6708
DOI
StatusUdgivet - 31. maj 2005

Bibliografisk note

15 pages, 4 figures, 2 tables, JHEP style

Emneord

  • hep-lat

Citer dette

Morte, Michele Della ; Hoffmann, Roland ; Knechtli, Francesco ; Sommer, Rainer ; Wolff, Ulli. / Non-perturbative renormalization of the axial current with dynamical Wilson fermions. I: JHEP. 2005.
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Non-perturbative renormalization of the axial current with dynamical Wilson fermions. / Morte, Michele Della; Hoffmann, Roland; Knechtli, Francesco; Sommer, Rainer; Wolff, Ulli.

I: JHEP, 31.05.2005.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Non-perturbative renormalization of the axial current with dynamical Wilson fermions

AU - Morte, Michele Della

AU - Hoffmann, Roland

AU - Knechtli, Francesco

AU - Sommer, Rainer

AU - Wolff, Ulli

N1 - 15 pages, 4 figures, 2 tables, JHEP style

PY - 2005/5/31

Y1 - 2005/5/31

N2 - We present a new normalization condition for the axial current, derived from the PCAC relation with non-vanishing quark mass. This condition is expected to reduce mass effects in the chiral extrapolation of the results for the normalization factor Z_A. The application to the two-flavor theory with improved Wilson fermions shows that this expectation is indeed fulfilled. Using the Schroedinger functional setup we calculate Z_A(g_0^2) as well as the vector current normalization factor Z_V(g_0^2) for beta = 6/g_0^2 >= 5.2.

AB - We present a new normalization condition for the axial current, derived from the PCAC relation with non-vanishing quark mass. This condition is expected to reduce mass effects in the chiral extrapolation of the results for the normalization factor Z_A. The application to the two-flavor theory with improved Wilson fermions shows that this expectation is indeed fulfilled. Using the Schroedinger functional setup we calculate Z_A(g_0^2) as well as the vector current normalization factor Z_V(g_0^2) for beta = 6/g_0^2 >= 5.2.

KW - hep-lat

U2 - 10.1088/1126-6708/2005/07/007

DO - 10.1088/1126-6708/2005/07/007

M3 - Tidsskriftartikel

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

SN - 1126-6708

ER -