TY  - JOUR
AU  - Bolder, Bram
AU  - Struckmann, Thorsten
AU  - Bali, Gunnar S.
AU  - Eicker, Norbert
AU  - Lippert, Thomas
AU  - Orth, Boris
AU  - Schilling, Klaus
AU  - Ueberholz, Peer
TI  - High precision study of the Q Q ¯ potential from Wilson loops at large distances
JO  - Physical review / D
VL  - 63
IS  - 7
SN  - 0556-2821
CY  - Melville, NY
PB  - Inst.812068
M1  - FZJ-2019-01099
SP  - 074504
PY  - 2001
AB  - For lattice QCD with two sea quark flavors we study the static quark-antiquark potential V(R) in the regime where string breaking is expected. In order to increase the statistics, we make full use of the lattice information by including all lattice vectors R to any given separation R=|R| 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 result, we achieve a determination of the Wilson loops in the range 0.8–1.5fm with hitherto unknown precision. Finally, we discuss the impact of this approach on the signal of the transition matrix element between two- and four-quark states.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1103/PhysRevD.63.074504
UR  - https://juser.fz-juelich.de/record/860324
ER  -