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The measurement of the omega meson parameters with the CMD-3 detector at the electron-positron collider VEPP-2000

Authors :
D. S. Vasileuskaya
D. N. Grigoriev
V. L. Ivanov
V. F. Kazanin
A. N. Kozyrev
A. A. Ruban
A. E. Ryzhenenkov
S. S. Tolmachev
G. V. Fedotovich
D. N. Shemyakin
D. V. Shoukavy
L. B. Epshteyn
Source :
Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series. 58:327-336
Publication Year :
2022
Publisher :
Publishing House Belorusskaya Nauka, 2022.

Abstract

The cross section of the process e+ e– → π+ π– π0 was measured with the CMD-3 detector at the electron-positron collider VEPP-2000 in the ω meson energy region based on the data collected in 2013–2018 and corresponding to an integrated luminosity of 40 pb–1. The parameters of the ω-meson: Mω = 782.67 ± 0.01 ± 0.1 MeV, Γω = 8.56 ± 0.02 ± 0.07 MeV, σ0(ω → π+ π– π) = 1629 ± 3 ± 36 nb with the precision match or even exceeding the previous data are obtained.

Details

ISSN :
25242415 and 15612430
Volume :
58
Database :
OpenAIRE
Journal :
Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series
Accession number :
edsair.doi...........6b5c02f278bf5ed21c68b4bc7469e56b
Full Text :
https://doi.org/10.29235/1561-2430-2022-58-3-327-336