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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2001, vol. 63, p. -

Measurements of the parameters of the 0(1020) resonance through studies of the processes e+e-→K+K-, KSKL, and π+π-π0

Achasov M. N., Beloborodov K. I., Berdyugin A. V., Bogdanchikov A. G., Bozhenok A. V., Bukin A. D., Bukin D. A., Burdin S. V., Dimova T. V., Druzhinin V. P., Dubrovin M. S., Gaponenko I. A., Golubev V. B., Ivanchenko V. N., Ivanov P. M., Korol A. A., Korostelev M. S., Koshuba S. V., Pakhtusova E. V., Polunin A. A., Pyata E. E., Salnikov A. A., Serednyakov S. I., Shary V. V., Shatunov M. Yu, Sidorov V. A., Silagadze Z. K., Skrinsky A. N., Usov V. Yu, Vasiljev A. V., Velikzhanin S. Yu

The cross sections of the processeswere measured in the SND experiment at the VEPP-2M collider in the energy region near the φ( 1020) meson. These measurements were based on about selected events. The measured cross sections have been analyzed in the framework of the vector meson dominance model and the main parameters of the φ resonance were obtained, such as its mass, width, the production cross section, and branching ratios of the main decay modes. The measured value of the φ meson total width, Γφ=4.21 ±0.04, is lower than the present world average of 4.458 ±0.032 MeV. Contributions in addition to the conventional vector meson dominance model were found in the reaction cross section. © 2001 The American Physical Society.