Mesonic Width Effects on the Momentum Dependence of the Rho-Omega Mixing Matrix Element
Nuclear Theory
2009-10-28 v4 High Energy Physics - Phenomenology
Abstract
It is shown, in a model independent way, that the large difference in rho and omega widths gives rise to a new source of momentum dependence for the rho-omega mixing matrix element. The q^2 dependence arising due to the meson widths leads to a significant alteration of the result obtained in the zero-width approximation usually discussed in the literature. The origin of this strong momentum dependence lies in the difference between the rho and omega meson widths.
Keywords
Cite
@article{arxiv.nucl-th/9504026,
title = {Mesonic Width Effects on the Momentum Dependence of the Rho-Omega Mixing Matrix Element},
author = {M. J. Iqbal and Xuemin Jin and Derek B. Leinweber},
journal= {arXiv preprint arXiv:nucl-th/9504026},
year = {2009}
}
Comments
9 pages. An additional figure illustrating the effect of a momentum dependent rho-meson width is included. This and related papers may also be obtained from http://www.phys.washington.edu/~derek/Publications.html