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 integra...
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| Format: | Article |
| Language: | English |
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2020-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2020)112 |
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| author | CMD-3 collaboration S. S. Gribanov A. S. Popov R. R. Akhmetshin A. N. Amirkhanov A. V. Anisenkov V. M. Aulchenko V. Sh. Banzarov N. S. Bashtovoy D. E. Berkaev A. E. Bondar A. V. Bragin S. I. Eidelman D. A. Epifanov L. B. Epshteyn A. L. Erofeev G. V. Fedotovich S. E. Gayazov F. J. Grancagnolo A. A. Grebenuk D. N. Grigoriev F. V. Ignatov V. L. Ivanov S. V. Karpov V. F. Kazanin A. N. Kirpotin I. A. Koop A. A. Korobov O. A. Kovalenko A. N. Kozyrev E. A. Kozyrev P. P. Krokovny A. E. Kuzmenko A. S. Kuzmin I. B. Logashenko P. A. Lukin K. Yu. Mikhailov V. S. Okhapkin A. V. Otboev Yu. N. Pestov G. P. Razuvaev Yu. A. Rogovsky A. A. Ruban N. M. Ryskulov A. E. Ryzhenenkov A. V. Semenov A. I. Senchenko Yu. M. Shatunov P. Yu. Shatunov V. E. Shebalin D. N. Shemyakin B. A. Shwartz D. B. Shwartz A. L. Sibidanov E. P. Solodov V. M. Titov A. A. Talyshev S. S. Tolmachev A. I. Vorobiov I. M. Zemlyansky Yu. V. Yudin |
| author_facet | CMD-3 collaboration S. S. Gribanov A. S. Popov R. R. Akhmetshin A. N. Amirkhanov A. V. Anisenkov V. M. Aulchenko V. Sh. Banzarov N. S. Bashtovoy D. E. Berkaev A. E. Bondar A. V. Bragin S. I. Eidelman D. A. Epifanov L. B. Epshteyn A. L. Erofeev G. V. Fedotovich S. E. Gayazov F. J. Grancagnolo A. A. Grebenuk D. N. Grigoriev F. V. Ignatov V. L. Ivanov S. V. Karpov V. F. Kazanin A. N. Kirpotin I. A. Koop A. A. Korobov O. A. Kovalenko A. N. Kozyrev E. A. Kozyrev P. P. Krokovny A. E. Kuzmenko A. S. Kuzmin I. B. Logashenko P. A. Lukin K. Yu. Mikhailov V. S. Okhapkin A. V. Otboev Yu. N. Pestov G. P. Razuvaev Yu. A. Rogovsky A. A. Ruban N. M. Ryskulov A. E. Ryzhenenkov A. V. Semenov A. I. Senchenko Yu. M. Shatunov P. Yu. Shatunov V. E. Shebalin D. N. Shemyakin B. A. Shwartz D. B. Shwartz A. L. Sibidanov E. P. Solodov V. M. Titov A. A. Talyshev S. S. Tolmachev A. I. Vorobiov I. M. Zemlyansky Yu. V. Yudin |
| author_sort | CMD-3 collaboration |
| collection | DOAJ |
| description | 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 $$ \mathcal{B} $$ (ρ(1450) → ηπ+π−) and the Γ(ρ(1700) → e+e−) B $$ \mathcal{B} $$ (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. |
| format | Article |
| id | doaj-art-49292a13193044389044537ec6a08003 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-49292a13193044389044537ec6a080032025-01-26T12:11:02ZengSpringerOpenJournal of High Energy Physics1029-84792020-01-012020112410.1007/JHEP01(2020)112Measurement of the e+e−→ ηπ+π− cross section with the CMD-3 detector at the VEPP-2000 colliderCMD-3 collaborationS. S. Gribanov0A. S. Popov1R. R. Akhmetshin2A. N. Amirkhanov3A. V. Anisenkov4V. M. Aulchenko5V. Sh. Banzarov6N. S. Bashtovoy7D. E. Berkaev8A. E. Bondar9A. V. Bragin10S. I. Eidelman11D. A. Epifanov12L. B. Epshteyn13A. L. Erofeev14G. V. Fedotovich15S. E. Gayazov16F. J. Grancagnolo17A. A. Grebenuk18D. N. Grigoriev19F. V. Ignatov20V. L. Ivanov21S. V. Karpov22V. F. Kazanin23A. N. Kirpotin24I. A. Koop25A. A. Korobov26O. A. Kovalenko27A. N. Kozyrev28E. A. Kozyrev29P. P. Krokovny30A. E. Kuzmenko31A. S. Kuzmin32I. B. Logashenko33P. A. Lukin34K. Yu. Mikhailov35V. S. Okhapkin36A. V. Otboev37Yu. N. Pestov38G. P. Razuvaev39Yu. A. Rogovsky40A. A. Ruban41N. M. Ryskulov42A. E. Ryzhenenkov43A. V. Semenov44A. I. Senchenko45Yu. M. Shatunov46P. Yu. Shatunov47V. E. Shebalin48D. N. Shemyakin49B. A. Shwartz50D. B. Shwartz51A. L. Sibidanov52E. P. Solodov53V. M. Titov54A. A. Talyshev55S. S. Tolmachev56A. I. Vorobiov57I. M. Zemlyansky58Yu. V. Yudin59Budker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASIstituto Nazionale di Fisica Nucleare, Sezione di Lecce, Physics DepartmentBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASAbstract 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 $$ \mathcal{B} $$ (ρ(1450) → ηπ+π−) and the Γ(ρ(1700) → e+e−) B $$ \mathcal{B} $$ (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.https://doi.org/10.1007/JHEP01(2020)112e+-e- Experiments |
| spellingShingle | CMD-3 collaboration S. S. Gribanov A. S. Popov R. R. Akhmetshin A. N. Amirkhanov A. V. Anisenkov V. M. Aulchenko V. Sh. Banzarov N. S. Bashtovoy D. E. Berkaev A. E. Bondar A. V. Bragin S. I. Eidelman D. A. Epifanov L. B. Epshteyn A. L. Erofeev G. V. Fedotovich S. E. Gayazov F. J. Grancagnolo A. A. Grebenuk D. N. Grigoriev F. V. Ignatov V. L. Ivanov S. V. Karpov V. F. Kazanin A. N. Kirpotin I. A. Koop A. A. Korobov O. A. Kovalenko A. N. Kozyrev E. A. Kozyrev P. P. Krokovny A. E. Kuzmenko A. S. Kuzmin I. B. Logashenko P. A. Lukin K. Yu. Mikhailov V. S. Okhapkin A. V. Otboev Yu. N. Pestov G. P. Razuvaev Yu. A. Rogovsky A. A. Ruban N. M. Ryskulov A. E. Ryzhenenkov A. V. Semenov A. I. Senchenko Yu. M. Shatunov P. Yu. Shatunov V. E. Shebalin D. N. Shemyakin B. A. Shwartz D. B. Shwartz A. L. Sibidanov E. P. Solodov V. M. Titov A. A. Talyshev S. S. Tolmachev A. I. Vorobiov I. M. Zemlyansky Yu. V. Yudin Measurement of the e+e−→ ηπ+π− cross section with the CMD-3 detector at the VEPP-2000 collider Journal of High Energy Physics e+-e- Experiments |
| title | Measurement of the e+e−→ ηπ+π− cross section with the CMD-3 detector at the VEPP-2000 collider |
| title_full | Measurement of the e+e−→ ηπ+π− cross section with the CMD-3 detector at the VEPP-2000 collider |
| title_fullStr | Measurement of the e+e−→ ηπ+π− cross section with the CMD-3 detector at the VEPP-2000 collider |
| title_full_unstemmed | Measurement of the e+e−→ ηπ+π− cross section with the CMD-3 detector at the VEPP-2000 collider |
| title_short | Measurement of the e+e−→ ηπ+π− cross section with the CMD-3 detector at the VEPP-2000 collider |
| title_sort | measurement of the e e ηπ π cross section with the cmd 3 detector at the vepp 2000 collider |
| topic | e+-e- Experiments |
| url | https://doi.org/10.1007/JHEP01(2020)112 |
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