Recent results on the running coupling in QCD with two massless flavours

M. Della Morte, R. Frezzotti, J. Heitger, F. Knechtli, J. Rolf, R. Sommer, U. Wolff

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

We report on the latest results on the running coupling of two flavour QCD in the Schr\"odinger functional scheme. Results for the step scaling function are obtained from simulations on lattices $L/a=8$ and $L/a=16$ which confirm the first results from lattices $L/a=4,5,6$ presented one year ago by the ALPHA collaboration. We also discuss some algorithmic aspects, in particular concerning the occurrence of metastable states. A modified sampling, in order to estimate the proper weight of these states in the path integral, is proposed and tested.
OriginalsprogUdefineret/Ukendt
TidsskriftNuclear and Particle Physics Proceedings
ISSN2405-6014
DOI
StatusUdgivet - 3. sep. 2002

Bibliografisk note

Lattice2002(improve), 3 pages, 2 figures

Emneord

  • hep-lat

Citer dette

Morte, M. Della ; Frezzotti, R. ; Heitger, J. ; Knechtli, F. ; Rolf, J. ; Sommer, R. ; Wolff, U. / Recent results on the running coupling in QCD with two massless flavours. I: Nuclear and Particle Physics Proceedings. 2002.
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Recent results on the running coupling in QCD with two massless flavours. / Morte, M. Della; Frezzotti, R.; Heitger, J.; Knechtli, F.; Rolf, J.; Sommer, R.; Wolff, U.

I: Nuclear and Particle Physics Proceedings, 03.09.2002.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Recent results on the running coupling in QCD with two massless flavours

AU - Morte, M. Della

AU - Frezzotti, R.

AU - Heitger, J.

AU - Knechtli, F.

AU - Rolf, J.

AU - Sommer, R.

AU - Wolff, U.

N1 - Lattice2002(improve), 3 pages, 2 figures

PY - 2002/9/3

Y1 - 2002/9/3

N2 - We report on the latest results on the running coupling of two flavour QCD in the Schr\"odinger functional scheme. Results for the step scaling function are obtained from simulations on lattices $L/a=8$ and $L/a=16$ which confirm the first results from lattices $L/a=4,5,6$ presented one year ago by the ALPHA collaboration. We also discuss some algorithmic aspects, in particular concerning the occurrence of metastable states. A modified sampling, in order to estimate the proper weight of these states in the path integral, is proposed and tested.

AB - We report on the latest results on the running coupling of two flavour QCD in the Schr\"odinger functional scheme. Results for the step scaling function are obtained from simulations on lattices $L/a=8$ and $L/a=16$ which confirm the first results from lattices $L/a=4,5,6$ presented one year ago by the ALPHA collaboration. We also discuss some algorithmic aspects, in particular concerning the occurrence of metastable states. A modified sampling, in order to estimate the proper weight of these states in the path integral, is proposed and tested.

KW - hep-lat

U2 - 10.1016/S0920-5632(03)01579-2

DO - 10.1016/S0920-5632(03)01579-2

M3 - Tidsskriftartikel

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

SN - 2405-6014

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