Non-perturbative quark mass renormalization in two-flavor QCD

Michele Della Morte, Roland Hoffmann, Francesco Knechtli, Juri Rolf, Rainer Sommer, Ines Wetzorke, Ulli Wolff

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

The running of renormalized quark masses is computed in lattice QCD with two flavors of massless O(a) improved Wilson quarks. The regularization and flavor independent factor that relates running quark masses to the renormalization group invariant ones is evaluated in the Schroedinger Functional scheme. Using existing data for the scale r_0 and the pseudoscalar meson masses, we define a reference quark mass in QCD with two degenerate quark flavors. We then compute the renormalization group invariant reference quark mass at three different lattice spacings. Our estimate for the continuum value is converted to the strange quark mass with the help of chiral perturbation theory.
OriginalsprogUdefineret/Ukendt
TidsskriftNuclear Physics B
DOI
StatusUdgivet - 23. jul. 2005

Bibliografisk note

25 pages, 6 figures; sections 1 and 4 rearranged, minor change to the summary plot

Emneord

  • hep-lat
  • hep-ph

Citer dette

Morte, Michele Della ; Hoffmann, Roland ; Knechtli, Francesco ; Rolf, Juri ; Sommer, Rainer ; Wetzorke, Ines ; Wolff, Ulli. / Non-perturbative quark mass renormalization in two-flavor QCD. I: Nuclear Physics B. 2005.
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keywords = "hep-lat, hep-ph",
author = "Morte, {Michele Della} and Roland Hoffmann and Francesco Knechtli and Juri Rolf and Rainer Sommer and Ines Wetzorke and Ulli Wolff",
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Non-perturbative quark mass renormalization in two-flavor QCD. / Morte, Michele Della; Hoffmann, Roland; Knechtli, Francesco; Rolf, Juri; Sommer, Rainer; Wetzorke, Ines; Wolff, Ulli.

I: Nuclear Physics B, 23.07.2005.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Non-perturbative quark mass renormalization in two-flavor QCD

AU - Morte, Michele Della

AU - Hoffmann, Roland

AU - Knechtli, Francesco

AU - Rolf, Juri

AU - Sommer, Rainer

AU - Wetzorke, Ines

AU - Wolff, Ulli

N1 - 25 pages, 6 figures; sections 1 and 4 rearranged, minor change to the summary plot

PY - 2005/7/23

Y1 - 2005/7/23

N2 - The running of renormalized quark masses is computed in lattice QCD with two flavors of massless O(a) improved Wilson quarks. The regularization and flavor independent factor that relates running quark masses to the renormalization group invariant ones is evaluated in the Schroedinger Functional scheme. Using existing data for the scale r_0 and the pseudoscalar meson masses, we define a reference quark mass in QCD with two degenerate quark flavors. We then compute the renormalization group invariant reference quark mass at three different lattice spacings. Our estimate for the continuum value is converted to the strange quark mass with the help of chiral perturbation theory.

AB - The running of renormalized quark masses is computed in lattice QCD with two flavors of massless O(a) improved Wilson quarks. The regularization and flavor independent factor that relates running quark masses to the renormalization group invariant ones is evaluated in the Schroedinger Functional scheme. Using existing data for the scale r_0 and the pseudoscalar meson masses, we define a reference quark mass in QCD with two degenerate quark flavors. We then compute the renormalization group invariant reference quark mass at three different lattice spacings. Our estimate for the continuum value is converted to the strange quark mass with the help of chiral perturbation theory.

KW - hep-lat

KW - hep-ph

U2 - 10.1016/j.nuclphysb.2005.09.028

DO - 10.1016/j.nuclphysb.2005.09.028

M3 - Tidsskriftartikel

JO - Nuclear Physics, Section B

JF - Nuclear Physics, Section B

SN - 0550-3213

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