Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2000-05-22
Phys.Rev. D63 (2001) 074504
Physics
High Energy Physics
High Energy Physics - Lattice
6 pages, 7 figures
Scientific paper
10.1103/PhysRevD.63.074504
For lattice QCD with two sea quark flavours we compute the static quark antiquark potential V(R) in the regime where string breaking is expected. In order to increase statistics, we make full use of the lattice information by including all lattice vectors R to any possible lattice separation in the infrared regime. The corresponding paths between the lattice points are constructed by means of a generalized Bresenham algorithm as known from computer graphics. As a results we achieve a determination of the unquenched potential in the range .8 to 1.5 fm with hitherto unknown precision. Furthermore, we demonstrate some error reducing methods for the evaluation of the transition matrix element between two- and four-quark states.
Bali Gunnar S.
Bolder Bram
Eicker Norbert
Lippert Th.
Orth Boris
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