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Titolo:
Potentials between static SU(3) sources in the fat-center-vortices model
Autore:
Deldar, S;
Indirizzi:
Washington Univ, St Louis, MO 63130 USA Washington Univ St Louis MO USA 63130 ington Univ, St Louis, MO 63130 USA
Titolo Testata:
JOURNAL OF HIGH ENERGY PHYSICS
fascicolo: 1, volume: 2001, anno: 2001,
pagine: NIL_297 - NIL_306
SICI:
1029-8479(200101)2001:1<NIL_297:PBSSSI>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTUM LIQUID; GAUGE; QCD; REPRESENTATIONS; CONFINEMENT;
Keywords:
nonperturbative effects; confinement; lattice gauge field theories; phenomenological models;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Deldar, S Washington Univ, St Louis, MO 63130 USA Washington Univ St Louis MO USA 63130 v, St Louis, MO 63130 USA
Citazione:
S. Deldar, "Potentials between static SU(3) sources in the fat-center-vortices model", J HIGH EN P, 2001(1), 2001, pp. NIL_297-NIL_306

Abstract

The potentials between static sources in various representations in SU(3) are calculated based on the fat-center-vortices model of Faber, Greensite and Olejnik. At intermediate distances, most distributions of the flux within vortices lead to potentials that are qualitatively in agreement with "Casimir scaling", which says that the string tension is proportional to the quadratic operator of the representation. However, at the quantitative level,violations of Casimir scaling are generally much larger than those seen innumerical simulations, indicating that additional physical input to the fat-center-vortices model is required. At large distances, screening occurs for zero-triality representations; for the representations with non-zero triality the string tension equals that of the fundamental representation. Some rather "unphysical" flux distributions can lead to violations of Casimir scaling at intermediate distances and violations of the expected ordering of representations at large distances.

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Documento generato il 03/04/20 alle ore 20:11:43