Measurement of the $φ$ meson parameters with CMD-2 detector at VEPP-2M Collider

Details Measurement of the $φ$ meson parameters with CMD-2 detector at VEPP-2M Collider Measurement of the $φ$ meson parameters with CMD-2 detector at VEPP-2M Collider

1999-06-22

arxiv.org/abs/hep-ex/9906032v2

Phys.Lett.B466:385,1999; Erratum-ibid.B508:217-218,2001

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 5 figures, 5 tables

Scientific paper

10.1016/S0370-2693(99)00973-9

About 300 000 $e^+e^-\to \phi\to K^0_L K^0_S$ events in the center of mass energy range from 984 to 1040 MeV were used for the measurement of the $\phi$ meson parameters. The following results have been obtained: $\sigma_0 = (1367 \pm 15 \pm 21) nb, m_{\phi}=(1019.504 \pm 0.011 \pm 0.033) MeV/c^2, \Gamma_\phi=(4.477 \pm 0.036 \pm 0.022) MeV, \Gamma_{e^+e^-}\cdot B(\phi\to K^0_L K^0_S) = (4.364 \pm 0.048 \pm 0.065)\cdot 10^{-4}$ MeV.

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