Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2000-10-31
Physics
High Energy Physics
High Energy Physics - Experiment
13 pages, Talk given at the XXIII International Workshop on the Fundamental Problems of High Energy Physics and Field Theory,
Scientific paper
The current status of experiments with SND detector at VEPP-2M $e^+e^-$ collider in the energy range $2E_0=0.4-1.4$ GeV is given. The new results of analysis of $\phi$ decay into $\pi^0\pi^0\gamma$, $\eta\pi^0\gamma$ are based on the full SND statistics corresponding 20 million of $\phi$ decay. New measurement of $\omega\to\pi^0\pi^0\gamma$ decay and a first observation of $\rho\to\pi^0\pi^0\gamma$ are presented. The accuracy of many other rare decays of light vector mesons was improved. In the energy range $2E_0=1.0\div1.4$ GeV the cross sections of the processes $e^+e^-\to\omega\pi^0$ and $e^+e^-\to\pi^+\pi^-\pi^0$ were measured. The results of the fitting of data are discussed.
Achasov M. N.
Aulchenko V. M.
Beloborodov K. I.
Berdyugin Andrei V.
Bogdanchikov A. G.
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