Dimension-2 condensates, zeta-regularization and large-Nc Regge Models

Abstract

Dimension-2 and -4 gluon condensates are re-analyzed in large-Nc Regge models with the zeta-function regularization which preserves the spectrum in any q qbar channel separately. We demonstrate that the signs and magnitudes of both condensates can be properly described within the framework.

Comments: 3 pages, 1 figure. Talk given at 4th International Conference on Quarks and Nuclear Physics (QNP06), Madrid, Spain, 5-10 Jun 2006. (typos corrected. References added)