Ke3 Decay Studies in the OKA Experiment
- Авторы: Yushchenko O.P.1, Kurshetsov V.F.1, Filin A.P.1, Akimenko S.A.1, Artamonov A.V.1, Blik A.M.1, Brekhovskikh V.V.1, Burtovoy V.S.1, Donskov S.V.1, Inyakin A.V.1, Gorin A.M.1, Khaustov G.V.1, Kholodenko S.A.1, Kolosov V.N.1, Konstantinov A.S.1, Leontiev V.M.1, Lishin V.A.1, Medynsky M.V.1, Mikhailov Y.V.1, Obraztsov V.F.1, Polyakov V.A.1, Popov A.V.1, Romanovsky V.I.1, Rykalin V.I.1, Sadovsky A.S.1, Samoilenko V.D.1, Semenov V.K.1, Stenyakin O.V.1, Tchikilev O.G.1, Uvarov V.A.1, Duk V.A.2, Filippov S.N.2, Guschin E.N.2, Kudenko Y.G.2, Khudyakov A.A.2, Kravtsov V.I.2, Polyarush A.Y.3, Bychkov V.N.3, Kekelidze G.D.3, Lysan V.M.3, Zalikhanov B.Z.3
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Учреждения:
- Institute for High Energy Physics
- Institute for Nuclear Research
- Joint Institute for Nuclear Research
- Выпуск: Том 107, № 3 (2018)
- Страницы: 139-142
- Раздел: Fields, Particles, and Nuclei
- URL: https://ogarev-online.ru/0021-3640/article/view/160769
- DOI: https://doi.org/10.1134/S0021364018030037
- ID: 160769
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Аннотация
Recent results from OKA setup concerning form factor studies in Ke3 decay are presented. About 5.25 M events obtained for decays of 17.7 GeV/cK+ are selected for the analysis. The linear and quadratic slopes for the decay form factor f+(t) are measured: λ'+ = 2.95 ± 0.022 ± 0.018 × 10 -2 for the linear slope fit and λ+ = 2.611 ± 0.035 ± 0.028 × 10 -2, λ"+ = 1.91 ± 0.19 ± 0.14 × 10 -3 for the quadratic one. The scalar and tensor contributions are compatible with zero. Several alternative parametrizations are tried: the Pole fit parameter is found to be MV = 891 ± 3 MeV; the parameter of the dispersive parametrization is measured to be Λ+ = 2.458 ± 0.018 × 10-2.
Об авторах
O. Yushchenko
Institute for High Energy Physics
Автор, ответственный за переписку.
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Kurshetsov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Filin
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
S. Akimenko
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Artamonov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Blik
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Brekhovskikh
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Burtovoy
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
S. Donskov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Inyakin
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Gorin
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
G. Khaustov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
S. Kholodenko
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Kolosov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Konstantinov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Leontiev
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Lishin
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
M. Medynsky
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
Yu. Mikhailov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Obraztsov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Polyakov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Popov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Romanovsky
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Rykalin
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
A. Sadovsky
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Samoilenko
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Semenov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
O. Stenyakin
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
O. Tchikilev
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Uvarov
Institute for High Energy Physics
Email: Oleg.Yushchenko@ihep.ru
Россия, Protvino, Moscow region, 142281
V. Duk
Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Troitsk, Moscow, 142190
S. Filippov
Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Troitsk, Moscow, 142190
E. Guschin
Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Troitsk, Moscow, 142190
Yu. Kudenko
Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Troitsk, Moscow, 142190
A. Khudyakov
Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Troitsk, Moscow, 142190
V. Kravtsov
Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Troitsk, Moscow, 142190
A. Polyarush
Joint Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Dubna, Moscow region, 141980
V. Bychkov
Joint Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Dubna, Moscow region, 141980
G. Kekelidze
Joint Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Dubna, Moscow region, 141980
V. Lysan
Joint Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Dubna, Moscow region, 141980
B. Zalikhanov
Joint Institute for Nuclear Research
Email: Oleg.Yushchenko@ihep.ru
Россия, Dubna, Moscow region, 141980
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