Source: https://nsu.ru/rs/publication/25544461459
Timestamp: 2019-04-22 06:32:11+00:00

Document:
Baru S. E., Beilin M. V., Blinov A. E., Bondar A. E., Bukin A. D., Groshev V. R., Klimenko S. G., Kolachev G. M., Onuchin A. P., Panin V. S., Protopopov I. Ya, Shamov A. G., Sidorov V. A., Skovpen Yu I., Skrinsky A. N., Tayursky V. A., Telnov V. I., Tikhonov Yu A., Tumaikin G. M., Undrus A. E., Vorobiov A. I., Zhilich V. N.
In experiments with e+e- beams performed at the VEPP-4 storage ring with the MD-1 detector we have measured Γee, the leptonic width, and Bμμ, the muon-pair branching ration, for the decay of γ(1s). We obtain Γee = (1.266 ± 0.023 ± 0.038) keV, Bμμ = (2.12 ± 0.20 ± 0.10)% and Γtot = (59.7 ± 5.7 ± 3.7) keV. © 1992.

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