29 July 2018 to 4 August 2018
Russian Academy of Sciences
Europe/Moscow timezone

Particle detection efficiency of the KEDR detector ASHIPH system

1 Aug 2018, 12:15
Blue Hall (Russian Academy of Sciences)

Blue Hall

Russian Academy of Sciences

Leninsky Prospekt, 32а Moscow 119071 Russian Federation
oral presentation [20+5 min] Alternative PID techniques Alternative PID techniques


Ivan Ovtin (BINP)


The particle identification system ASHIPH (Aerogel SHifter PHotomultiplier) has been working in the KEDR experiment at VEPP-4M collider since 2014. The system consists of 160 counters arranged in two layer and covers the 96% of the solid angle. Two layer system permits to use different approaches for pi/K-separation. Three such approaches are described. The status of the system is presented. Main system parameters such as BhaBha suppression factor, pi/K-separation power, relativistic particle detection efficiency were measured with help of cosmic particles and experimental data collected at the peak of J/psi-meson. Dependences of these parameters on time are evaluated. Monte-Carlo simulation procedures are described and its results are presented as well.

Primary authors

Dr Evgeniy Kravchenko (Novosibirsk State University & Novosibirsk State University) Alexander Barnyakov (Budker Institute of Nuclear Physics SB RAS) Mr Michail Barnyakov (BINP) Victor Bobrovnikov (BINP) Alexey Buzykaev (BINP) Ivan Ovtin (BINP) Mr Ivan Kuyanov (Budker Institute of Nuclear Physics & Novosibirsk State University) Sergey Kononov (Budker Institute of Nuclear Physics & Novosibirsk State University) Alexander Katcin Alexander Danilyuk (Boreskov Institute of Catalysis) Onuchin Alexei (BINP)

Presentation Materials

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