The quark mass correction to the string potential
G. Germán1 - Yu. Jiang2
1 Instituto de Física, Laboratorio de Cuernavaca,
Universidad Nacional Autónoma de México, Apartado Postal 48-3,
62251 Cuernavaca, Morelos, México
2 Facultad de Ciencias, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, 62210 Cuernavaca, Morelos, México
Received: 21 April 1998 / Revised version: 19 November 1998 / Published online: 27 April 1999
Following recent work by Lambiase and Nesterenko we study in detail the interquark potential for a Nambu-Goto string with point masses attached to its ends. We obtain accurate solutions to the gap equations for the Lagrange multipliers and metric components and determine the potential without simplifying assumptions. We also discuss the Lüscher term and argue that it remains universal.