Abstract
The reaction e + e −→ωπ0 near a Φ resonance was studied with a spherical neutral detector at VEPP-2M e + e − collider. Both main modes of decay of a ω meson were investigated: ω→π+π−π0 and ω→π 0γ. The probability of decay Φ→ωπ0 was obtained from the magnitude of the interference wave in the cross section for the reaction e + e −→ωπ0→ π+π−π0π0: B(Φ→ωπ0) = (5.5 +1.6−1.4 ±0.3) ×10−5. The ratio of the partial widths of the ω meson was obtained from the ratio of the cross sections for the two modes: Γ(ω→π0γ )/Γ(ω→π+π−π0) = 0.0994 ± 0.0036 ± 0.0038.
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Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 117, No. 6, 2000, pp. 1067–1079.
Original Russian Text Copyright © 2000 by Aulchenko, Achasov, Beloborodov, Berdyugin, Bogdanchikov, Bozhenok, A. Bukin, D. Bukin, Burdin, Vasiljev, Gaponenko, Golubev, Dimova, Drozdetsky, Druzhinin, Dubrovin, Ivanov, Ivanchenko, Koop, Korol, Koshuba, Kukartsev, Lysenko, Otboev, Pakhtusova, Salnikov, Serednyakov, Sidorov, Silagadze, Skrinsky, Shary, Shatunov.
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Aulchenko, V.M., Achasov, M.N., Beloborodov, K.I. et al. The process e + e − → ωπ0 near the Φ resonance. J. Exp. Theor. Phys. 90, 927–938 (2000). https://doi.org/10.1134/1.559181
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DOI: https://doi.org/10.1134/1.559181