Measurement of omega meson parameters in pi^+pi^-pi^0 decay mode with CMD-2

Details Measurement of omega meson parameters in pi^+pi^-pi^0 decay mode with CMD-2 Measurement of omega meson parameters in pi^+pi^-pi^0 decay mode with CMD-2

2000-02-06

arxiv.org/abs/hep-ex/0002017v1

Phys.Lett.B476:33-39,2000

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 4 figures

Scientific paper

10.1016/S0370-2693(00)00123-4

About 11 200 e^+e^- -> omega -> pi^+pi^-pi^0 events selected in the center of mass energy range from 760 to 810 MeV were used for the measurement of the \omega meson parameters. The following results have been obtained: sigma _{0}=(1457 \pm 23 \pm 19)nb, m_{\omega}=(782.71 \pm 0.07 \pm 0.04) MeV/c^{2}, \Gamma_{\omega}=(8.68 \pm 0.23 \pm 0.10) MeV, \Gamma_{e^+e^-}\cdot Br (\omega -> pi^+pi^-pi^0)= (0.528 \pm 0.012 \pm 0.007) \cdot 10^{-3} MeV.

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