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Titolo:
Off-diagonal gluon mass generation and infrared Abelian dominance in the maximally Abelian gauge in lattice QCD - art. no. 114509
Autore:
Amemiya, K; Suganuma, H;
Indirizzi:
Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan Osaka Univ Osaka Japan 5670047 , Nucl Phys Res Ctr, Osaka 5670047, Japan
Titolo Testata:
PHYSICAL REVIEW D
fascicolo: 11, volume: 6011, anno: 1999,
pagine: 4509 -
SICI:
0556-2821(199912)6011:11<4509:OGMGAI>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHIRAL-SYMMETRY BREAKING; GINZBURG-LANDAU THEORY; QUARK CONFINEMENT; COLOR CONFINEMENT; MONOPOLES; FIELDS; MECHANISM; DYNAMICS; TOPOLOGY; STRINGS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Amemiya, K Osaka Univ, Nucl Phys Res Ctr, Mihogaoka 10-1, Osaka 5670047, Japan Osaka Univ Mihogaoka 10-1 Osaka Japan 5670047 a 5670047, Japan
Citazione:
K. Amemiya e H. Suganuma, "Off-diagonal gluon mass generation and infrared Abelian dominance in the maximally Abelian gauge in lattice QCD - art. no. 114509", PHYS REV D, 6011(11), 1999, pp. 4509

Abstract

We study effective mass generation of off-diagonal gluons and infrared Abelian dominance in the maximally Abelian (MA) gauge. Using SU(2) lattice QCD, we investigate the propagator and the effective mass of the gluon field in the MA gauge with U(1)(3) Landau gauge fixing. The Monte Carlo simulationis performed on the 12(3) X 24 lattice with 2.2 less than or equal to betaless than or equal to 2.4, and also on the 16(4) and 20(4) lattices with 2.3 less than or equal to beta less than or equal to 2.4. In the MA gauge, the diagonal gluon component A(u)(3) shows long-range propagation, and infrared Abelian dominance is found for the gluon propagator. In the MA gauge, the off-diagonal gluon component A(mu)(+/-) behaves as a massive vector boson with the effective mass M-off similar or equal to 1.2 GeV in the region of r greater than or similar to 0.2 fm, and its propagation is limited within a short range. We conjecture that infrared Abelian dominance can be interpreted as infrared inactivity of the off-diagonal gluon due to its large mass generation induced by the MA gauge fixing. [S0556-2821(99)05223-6].

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Documento generato il 28/03/20 alle ore 23:08:38