Rho-Omega Mixing and the Pion Form Factor in the Time-like Region

Abstract

We determine the magnitude, phase, and $s$-dependence of $\rho$-$\omega$ ``mixing'' in the pion form factor in the time-like region through fits to $e^+e^- \ra π^+ π^-$ data. The associated systematic errors in these quantities, arising from the functional form used to fit the $\rho$ resonance, are small. The systematic errors in the $\rho$ mass and width, however, are larger than previously estimated.

20 pages, REVTeX, epsfig, 2 ps figures, minor changes

References in corpus (1)

• Extracting the rho-omega mixing amplitude from the pion form-factor

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