@article{8cf4c9e0ac224d6ab097348576a39c35,
title = "Measurement of the e+e− → ηπ + π − cross section with the CMD-3 detector at the VEPP-2000 collider",
abstract = "The cross section of the process e+e−→ ηπ+π− is measured using the data collected with the CMD-3 detector at the VEPP-2000 collider in the center-of-mass energy range from 1.1 to 2.0 GeV. The decay mode η → γγ is used for η meson reconstruction in the data sample corresponding to an integrated luminosity of 78.3 pb−1. The energy dependence of the e+e−→ ηπ+π− cross section is fitted within the framework of vector meson dominance in order to extract the Γ(ρ(1450) → e+e−)B(ρ(1450) → ηπ+π−) and the Γ(ρ(1700) → e+e−)B(ρ(1700) → ηπ+π−) products. Based on conservation of vector current, the analyzed data are used to test the relationship between the e+e−→ ηπ+π− cross section and the spectral function in τ−→ ηπ−π0ντ decay. The e+e−→ ηπ+π− cross section obtained with the CMD-3 detector is in good agreement with the previous measurements.",
keywords = "e+-e- Experiments, e plus -e- Experiments, ANNIHILATION, ENERGY-RANGE, PHYSICS",
author = "{CMD-3 Collaboration} and Gribanov, {S. S.} and Popov, {A. S.} and Akhmetshin, {R. R.} and Amirkhanov, {A. N.} and Anisenkov, {A. V.} and Aulchenko, {V. M.} and Banzarov, {V. Sh} and Bashtovoy, {N. S.} and Berkaev, {D. E.} and Bondar, {A. E.} and Bragin, {A. V.} and Eidelman, {S. I.} and Epifanov, {D. A.} and Epshteyn, {L. B.} and Erofeev, {A. L.} and Fedotovich, {G. V.} and Gayazov, {S. E.} and Grancagnolo, {F. J.} and Grebenuk, {A. A.} and Grigoriev, {D. N.} and Ignatov, {F. V.} and Ivanov, {V. L.} and Karpov, {S. V.} and Kazanin, {V. F.} and Kirpotin, {A. N.} and Koop, {I. A.} and Korobov, {A. A.} and Kovalenko, {O. A.} and Kozyrev, {A. N.} and Kozyrev, {E. A.} and Krokovny, {P. P.} and Kuzmenko, {A. E.} and Kuzmin, {A. S.} and Logashenko, {I. B.} and Lukin, {P. A.} and Mikhailov, {K. Yu} and Okhapkin, {V. S.} and Otboev, {A. V.} and Razuvaev, {G. P.} and Rogovsky, {Yu A.} and Ryskulov, {N. M.} and Ryzhenenkov, {A. E.} and Senchenko, {A. I.} and Shatunov, {Yu M.} and Shebalin, {V. E.} and Shemyakin, {D. N.} and Shwartz, {D. B.} and Talyshev, {A. A.} and Tolmachev, {S. S.} and Yudin, {Yu V.}",
year = "2020",
month = jan,
day = "1",
doi = "10.1007/JHEP01(2020)112",
language = "English",
volume = "2020",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer US",
number = "1",
}