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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 1999, vol. 466, p. 385-391

Measurement of φ meson parameters in KL 0KS 0 decay mode with CMD-2

Akhmetshin R. R., Anashkin E. V., Arpagaus M., Aulchenko V. M., Banzarov V. Sh, Barkov L. M., Baru S. E., Bashtovoy N. S., Bondar A. E., Chernyak D. V., Chertovskikh A. G., Eidelman S. I., Fedotovich G. V., Gabyshev N. I., Grebeniuk A. A., Grigoriev D. N., Khazin B. I., Koop I. A., Kurdadze L. M., Kuzmin A. S., Logashenko I. B., Lukin P. A., Lysenko A. P., Nesterenko I. N., Okhapkin V. S., Perevedentsev E. A., Polunin A. A., Pozdeev E. G., Ptitzyn V. I., Purlatz T. A., Root N. I., Ruban A. A., Ryskulov N. M., Shamov A. G., Shatunov Yu M., Shekhtman A. I., Shwartz B. A., Sidorov V. A., Skrinsky A. N., Smakhtin V. P., Snopkov I. G., Solodov E. P., Stepanov P. Yu, Sukhanov A. I., Yudin Yu V., Zverev S. G., Dvoretsky A. S., Krokovny P. P., Mikhailov K. Yu, Thompson J. A.

About 300 000 e+e- → φ → KL 0KS 0 events in the center of mass energy range from 984 to 1040 MeV were used for the measurement of the φ meson parameters. The following results have been obtained: σ0 = (1367 ± 15 ± 21) nb, mφ = (1019.504 ± 0.011 ± 0.033) MeV/c2, Γφ = (4.477 ± 0.036 ± 0.022) MeV, Γe+e-. B(φ→ KL 0KS 0) = (4.364 ± 0.048 ± 0.065) · 10-4 MeV. © 1999 Elsevier Science B.V. All rights reserved.