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ISSN - 10637761, EISSN - 10906509, Journal of Experimental and Theoretical Physics, 1999, vol. 90, p. 17-23

Measurement of the relative probability of φ → ηγ decay in the η → π+π-π0 channel

Achasov M. N., Beloborodov K. I., Berdyugin A. V., Bozhenok A. V., Bukin A. D., Bukin D. A., Burdin S. V., Vasil'ev A. V., Ganyushin D. I., Gaponenko I. A., Golubev V. B., Dimova T. V., Dolinskiǐ S. I., Druzhinin V. P., Dubrovin M. S., Zakharov A. S., Ivanchenko V. N., Ivanov P. M., Korol A. A., Koshuba S. V., Kukhartsev G. A., Mamutkin A. A., Otboev A. V., Pakhtusova E. V., Sal'nikov A. A., Serednyakov S. I., Sidorov V. A., Silagadze Z. K., Sharyǐ V. V., Shatunov Yu M.

The relative decay probability B(φ → ηγ) = (1.259 ± 0.030 ± 0.059)% in the decay channel η → π+π-π0 has been measured in an experiment using a spherical neutral detector in the VEPP-2M electron-positron storage ring. The result agrees with the tabulated value and with measurements of this probability using the spherical neutral detector in other η-meson decay channels. © 2000 MAIK "Nauka/Interperiodica".