Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1998-03-26
Phys.Rev. D59 (1999) 014502
Physics
High Energy Physics
High Energy Physics - Lattice
14 pages, 7 figures (minor changes to overall scales in Fig.1; typos removed from Eqs. (3),(4),(15); some rewording of Introdu
Scientific paper
10.1103/PhysRevD.59.014502
A comprehensive analysis of tadpole-improved SU(2) lattice gauge theory is made. Simulations are done on isotropic and anisotropic lattices, with and without improvement. Two tadpole renormalization schemes are employed, one using average plaquettes, the other using mean links in Landau gauge. Simulations are done with spatial lattice spacings $a_s$ in the range of about 0.1--0.4 fm. Results are presented for the static quark potential, the renormalized lattice anisotropy $a_t/a_s$ (where $a_t$ is the ``temporal'' lattice spacing), and for the scalar and tensor glueball masses. Tadpole improvement significantly reduces discretization errors in the static quark potential and in the scalar glueball mass, and results in very little renormalization of the bare anisotropy that is input to the action. We also find that tadpole improvement using mean links in Landau gauge results in smaller discretization errors in the scalar glueball mass (as well as in the static quark potential), compared to when average plaquettes are used. The possibility is also raised that further improvement in the scalar glueball mass may result when the coefficients of the operators which correct for discretization errors in the action are computed beyond tree level.
Shakespeare Norman H.
Trottier Howard D.
No associations
LandOfFree
Tadpole-improved SU(2) lattice gauge theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Tadpole-improved SU(2) lattice gauge theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tadpole-improved SU(2) lattice gauge theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-611624