Spherical Neutral Detector for VEPP-2M collider
/ Authors
M.N.Achasov, V.M.Aulchenko, S.E.Baru, K.I.Beloborodov, A.V.Berdyugin, A.G.Bogdanchikov, A.V.Bozhenok, A.D.Bukin, D.A.Bukin, S.V.Burdin
and 22 more authors
T.V.Dimova, S.I.Dolinsky, A.A.Drozdetsky, V.P.Druzhinin, M.S.Dubrovin, I.A.Gaponenko, V.B.Golubev, V.N.Ivanchenko, A.A.Korol, S.V.Koshuba, G.A.Kukartsev, E.V.Pakhtusova, V.M.Popov, A.A.Salnikov, S.I.Serednyakov, V.V.Shary, V.A.Sidorov, Z.K.Silagadze, Yu.V.Usov, A.V.Vasiljev, Yu.S.Velikzhanin, A.C.Zakharov
/ Abstract
The Spherical Neutral Detector (SND) operates at VEPP-2M collider in Novosibirsk studying e + e − annihilation in the energy range up to 1.4 GeV. Detector consists of a fine granulated spherical scintillation calorimeter with 1632 NaI(Tl) crystals, two cylindrical drift chambers with 10 layers of sense wires, and a muon system made of streamer tubes and plastic scintillation counters. The detector design, performance, data acquisition and processing are described.