• Corpus ID: 117955838

# On QCD and $\omega-\rho$ mixing

@article{Nasrallah1999OnQA,
title={On QCD and \$\omega-\rho\$ mixing},
author={Nasrallah F. Nasrallah},
journal={arXiv: High Energy Physics - Phenomenology},
year={1999}
}
• N. Nasrallah
• Published 2 March 1999
• Physics
• arXiv: High Energy Physics - Phenomenology
The evaluation of sum rules and vacuum condensates used in the calculation of the mixing parameters of the $\omega -\rho$ system involve dangerous cancellations of large numbers. In this note the contribution of the continuum is eliminated in order to avoid such a large source of uncertainty. It is also seen that the hypothesis of vacuum saturation used in the estimate of the dimension 6 condensate is inadequate. The value obtained for the parameter $\beta$ which governs the off-shell variation…