Rho-Omega Mixing via QCD Sum Rules with Finite Mesonic Widths
Nuclear Theory
2009-10-28 v3 High Energy Physics - Phenomenology
Abstract
Based on the analysis of both Borel and Finite-Energy QCD sum rules, the inclusion of finite mesonic widths leads to a dramatic effect on the predictions for the momentum dependence of the rho-omega mixing matrix element. It is shown that the rho-omega mixing matrix element traditionally discussed in the literature, has the same sign and similar magnitude in the space-like region as its on-shell value. This contrasts the zero-width result where the mixing matrix element is typically of opposite sign in the space-like region.
Keywords
Cite
@article{arxiv.nucl-th/9507026,
title = {Rho-Omega Mixing via QCD Sum Rules with Finite Mesonic Widths},
author = {M. J. Iqbal and Xuemin Jin and Derek B. Leinweber},
journal= {arXiv preprint arXiv:nucl-th/9507026},
year = {2009}
}
Comments
10 pages. Revised manuscript accepted for publication. This and related papers may also be obtained from http://www.phys.washington.edu/~derek/Publications.html