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APS » Journals » Phys. Rev. D » Volume 67 » Issue 9
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Phys. Rev. D 67, 091502(R) (2003) [5 pages]

SU(2) Landau gluon propagator on a 1403 lattice

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Attilio Cucchieri* and Tereza Mendes†
Instituto de Física de São Carlos, Universidade de São Paulo, C.P. 369, 13560-970 São Carlos, SP, Brazil

Andre R. Taurines‡
Instituto de Física, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Campus do Vale, 91501-970 Porto Alegre, RS, Brazil

Received 27 February 2003; published 19 May 2003

We present a numerical study of the gluon propagator in the lattice Landau gauge for three-dimensional pure SU(2) lattice gauge theory at couplings β=4.2, 5.0, 6.0 and for lattice volumes V=403, 803, 1403. In the limit of large V we observe a decreasing gluon propagator for momenta smaller than pdec=350-50+100MeV. Data are well fitted by Gribov-like formulas and seem to indicate an infrared critical exponent κ slightly above 0.6, in agreement with recent analytic results.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.67.091502
DOI:
10.1103/PhysRevD.67.091502
PACS:
11.15.Ha, 12.38.Aw, 12.38.Lg, 14.70.Dj

*Email address: attilio@if.sc.usp.br

†Email address: mendes@if.sc.usp.br

‡Email address: taurines@if.ufrgs.br

 
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