The process $e^+e^-\toπ^+π^-π^0$ in the energy range 2E_0=1.04 - 1.38 GeV

Achasov, M. N.; Aulchenko, V. M.; Baru, S. E.; Beloborodov, K. I.; Berdyugin, A. V.; Bozhenok, A. V.; Bukin, A. D.; Bukin, D. A.; Burdin, S. V.; Dimova, T. V.; Dolinsky, S. I.; Druzhinin, V. P.; Dubrovin, M. S.; Gaponenko, I. A.; Golubev, V. B.; Ivanchenko, V. N.; Koop, I. A.; Ivanov, P. M.; Korol, A. A.; Koshuba, S. V.; Pakhtusova, E. V.; Perevedentsev, E. A.; Salnikov, A. A.; Serednyakov, S. I.; Shary, V. V.; Shatunov, Yu. M.; Sidorov, V. A.; Silagadze, Z. K.; Skrinsky, A. N.; Usov, Y. V.; Varganov, A. V.; Vasilyev, A. V.; Velikzhanin, Yu. S.

The process $e^+e^-\toπ^+π^-π^0$ in the energy range 2E_0=1.04 - 1.38 GeV

Authors

Description

In the experiment with the SND detector at VEPP-2M e^+e^- collider the process $e^+e^-\toπ^+π^-π^0$ was studied in the energy range 2E_0 from 1.04 to 1.38 GeV. A broad peak was observed with the visible mass $M_{vis}=1220\pm 20$ MeV and cross section in the maximum $σ_0\simeq 4$ nb. The peak can be interpreted as a $ω$-like resonance $ω(1200)$.
10 pages LATEX and 5 figures