Particle Detection Efficiency of the KEDR Detector ASHIPH System
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Конференция |
10th International Workshop on Ring Imaging Cherenkov Detectors
29 июл. - 4 авг. 2018
,
Moscow
|
| Журнал |
Nuclear Instruments and Methods in Physics Research Section A
ISSN: 0168-9002
|
| Вых. Данные |
Год: 2020,
Том: 952,
Номер статьи
: 162278,
Страниц
: 4
DOI:
10.1016/j.nima.2019.06.019
|
| Ключевые слова |
Aerogel; Cherenkov counter; Particle identification |
| Авторы |
Barnyakov A.Yu.
1,2,3
,
Barnyakov M.Yu.
1,2,3
,
Bobrovnikov V.S.
1,2
,
Buzykaev A.R.
1,2
,
Danilyuk A.F.
2,4
,
Katcin A.A.
1,2
,
Kononov S.A.
1,2
,
Kravchenko E.A.
1,2
,
Kuyanov I.A.
1,2
,
Onuchin A.P.
1,3
,
Ovtin I.V.
1,2
|
| Организации |
| 1 |
Budker Institute of Nuclear Physics, Lavrentieva 11, Novosibirsk, 630090, Russian Federation
|
| 2 |
Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russian Federation
|
| 3 |
Novosibirsk State Technical University, Karl Marks Prospect 20, Novosibirsk, 630073, Russian Federation
|
| 4 |
Boreskov Institute of Catalysis, Acad. Lavrentiev Prospect 5, Novosibirsk, 630090, Russian Federation
|
|
The particle identification system ASHIPH (Aerogel, SHifter, PHotomultiplier) has been working in the KEDR experiment at VEPP-4M collider (Budker INP, Novosibirsk) since 2014. The system consists of 160 counters arranged in two layers and covers the 96% of the solid angle. Two layer system permits to use different approaches for π/K separation. Three such approaches are described. The status of the system is presented. Main system parameters such as BhaBha suppression factor, π/K separation power, relativistic particle detection efficiency were measured with help of cosmic particles and experimental data collected at the peak of J/ψ-meson. π/K separation in the momentum range from 0.95 to 1.45 GeV/c is better than 4σ. Monte-Carlo simulation procedures are described and results are presented as well.