| Veröffentlichte Version Download ( PDF | 606kB) |
Running coupling and theΛparameter from SU(3) lattice simulations
Bali, Gunnar S.
und Schilling, Klaus
(1993)
Running coupling and theΛparameter from SU(3) lattice simulations.
Physical Review D 47 (2), S. 661-672.
Veröffentlichungsdatum dieses Volltextes: 02 Apr 2019 11:34
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.40017
Zusammenfassung
We present new results on the static q¯q potential from high-statistics simulations on 324 and smaller lattices, using the standard Wilson action at β=6.0, 6.4, and 6.8 on the Connection Machine CM-2. Within our statistical errors (≈ 1%) we do not observe any finite-size effects affecting the potential values, on varying the spatial lattice extent from 0.9 fm up to 3.3 fm. We are able to see and ...
We present new results on the static q¯q potential from high-statistics simulations on 324 and smaller lattices, using the standard Wilson action at β=6.0, 6.4, and 6.8 on the Connection Machine CM-2. Within our statistical errors (≈ 1%) we do not observe any finite-size effects affecting the potential values, on varying the spatial lattice extent from 0.9 fm up to 3.3 fm. We are able to see and quantify the running of the coupling from the Coulomb behavior of the interquark force. From this we extract the ratio √σΛL. We demonstrate that scaling violations on the string tension can be considerably reduced by introducing effective coupling schemes, which allow for a safe extrapolation of ΛL to its continuum value. Both methods yield consistent values for Λ:Λ–––––MS=0.555+0.019−0.017×√σ=244+8−7 MeV, where –––––MS denotes the modified minimal subtraction scheme. At the highest-energy scale attainable to us we find α(5 GeV)=0.150(3).
Alternative Links zum Volltext
Beteiligte Einrichtungen
Details
| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Physical Review D | ||||
| Verlag: | American Physical Society (APS) | ||||
|---|---|---|---|---|---|
| Band: | 47 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 2 | ||||
| Seitenbereich: | S. 661-672 | ||||
| Datum | 1993 | ||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Gunnar Bali | ||||
| Identifikationsnummer |
| ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-400173 | ||||
| Dokumenten-ID | 40017 |
Downloadstatistik
Downloadstatistik