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Measurement of the e+e− → ηπ+π− cross section in the = 1.04–1.38-GeV energy range with a spherical neutral detector at the VEPP-2M collider

The e + e − → ηπ + π − cross section in the η → 2γ channel has been measured in the = 1.04- to 1.38-GeV energy range. The data with a total integrated luminosity of 9.05 pb −1 were collected on a spherical neutral detector at the VEPP-2M collider. The results are consistent with the BaBar and CMD2 d...

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Bibliographic Details
Published in:JETP letters 2010, Vol.92 (2), p.80-84
Main Authors: Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bukin, D. A., Vasil’ev, A. V., Golubev, V. B., Dimova, T. V., Druzhinin, V. P., Koop, I. A., Korol’, A. A., Koshuba, S. V., Pakhtusova, E. V., Serednyakov, S. I., Silagadze, Z. K., Skrinsky, A. N., Shatunov, Yu. M., Shtol’, D. A.
Format: Article
Language:English
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Summary:The e + e − → ηπ + π − cross section in the η → 2γ channel has been measured in the = 1.04- to 1.38-GeV energy range. The data with a total integrated luminosity of 9.05 pb −1 were collected on a spherical neutral detector at the VEPP-2M collider. The results are consistent with the BaBar and CMD2 data and have a higher statistical accuracy.
ISSN:0021-3640
1090-6487
DOI:10.1134/S002136401014002X