Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1999-09-09
Nucl.Phys.Proc.Suppl. 83 (2000) 440-442
Physics
High Energy Physics
High Energy Physics - Lattice
LATTICE99(Confinement) 3 pages, 3 figures,typos corrected
Scientific paper
The string tensions for fundamental and a variety of representations: adjoint, 6, 10, 15-symmetric, 15-antisymmetric, and 27 have been measured in pure gauge SU(3). The calculations have been done on anisotropic lattices, using an $O(a^2)$ tadpole improved action. A range of lattice spacings and lattice sizes has been used to control finite volume and finite lattice spacing effects. Potentials between quarks in various representations have also been calculated with the fat center vortices model. At intermediate distances, the results show approximate Casimir scaling. From my lattice calculations, no color screening has been observed so far, even for distances as large as about 2.5 fm.
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