High precision study of the QQ potential from Wilson loops at large distances

Bolder, B.,, Struckmann, T., Bali, G.S., Eicker, N., Lippert, T., Orth, B., Schilling, K. and Ueberholz, P. (2001) High precision study of the QQ potential from Wilson loops at large distances. Physical Review D, 63(7), 074504. (doi: 10.1103/PhysRevD.63.074504)

Abstract

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 0.8-1.5 fm 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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: UNSPECIFIED
• Authors: Bolder, B.,, Struckmann, T., Bali, G.S., Eicker, N., Lippert, T., Orth, B., Schilling, K., and Ueberholz, P.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review D
• Publisher: American Physical Society
• ISSN: 1550-7998
• ISSN (Online): 1089-4918