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Operation and Performance of the ASHIPH Counters at the KEDR Detector Conference attendances

Language Английский
Participant type Устный
URL https://agenda.infn.it/getFile.py/access?contribId=118&sessionId=2&resId=0&materialId=slides&confId=8397
Conference Frontier detectors for frontier physics : 13th Pisa Meeting on Advanced Detectors
24-30 May 2015 , La Biodola, Isola d'Elba
Authors Barnyakov Aleksandr Yurʹevich 1,3 , Barnyakov Mikhail Yurievich 1,3,4 , Bobrovnikov Viktor Sergeevich 1 , Buzykaev Alexey 1,3 , Danilyuk Alexandr Fedorovich 2,3 , Katcin Aleksandr A. 1 , Kononov Sergey Anatolʹevich 1,3 , Kravchenko E. A. 1,3 , Kuyanov I. A. 1,3 , Onuchin Aleksei Pavlovich 1,3,4 , Ovtin I. V. 1 , Rodyakin V. A. 1
Affiliations
1 Budker Institute of Nuclear Physics SB RAS
2 Boreskov Institute of Catalysis SB RAS
3 Novosibirsk National Research University
4 Novosibirsk State Technical University

Abstract: In 2014 the fully installed ASHIPH (Aerogel, SHifter, PHotomultiplier) system began its operation in the KEDR experiment at the VEPP-4M e+e- collider. The system contains 1000 liters of aerogel with refractive index 1.05 in160 counters that are arranged in two layers. Light collection is preformed by means of wavelength shifters. 160 Micro-Channel Plate PMTs with multialkali photocathode are used as photodetectors. Detection efficiency for relativistic particles was measured with е+е- -> e+e- events and cosmic muons. Detection efficiency for under-threshold particles was measured with cosmic muons. From these data pi/K-separation of 4 sigma at the momentum 1.2 GeV/c was obtained.
Cite: Barnyakov A.Y. , Barnyakov M.Y. , Bobrovnikov V.S. , Buzykaev A. , Danilyuk A.F. , Katcin A.A. , Kononov S.A. , Kravchenko E.A. , Kuyanov I.A. , Onuchin A.P. , Ovtin I.V. , Rodyakin V.A.
Operation and Performance of the ASHIPH Counters at the KEDR Detector
Frontier detectors for frontier physics : 13th Pisa Meeting on Advanced Detectors 24-30 May 2015