English

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

High Energy Physics - Experiment 2008-11-26 v1

Abstract

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.

Keywords

Cite

@article{arxiv.hep-ex/0002017,
  title  = {Measurement of omega meson parameters in pi^+pi^-pi^0 decay mode with CMD-2},
  author = {2 Collaboration},
  journal= {arXiv preprint arXiv:hep-ex/0002017},
  year   = {2008}
}

Comments

8 pages, 4 figures