{"paper":{"title":"Medium energy calorimetry at SND: techniques and performances on physics","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A.A.Drozdetsky, A.A.Korol, A.A.Salnikov, A.A.Valishev, A.D.Bukin, A.P.Lysenko, A.S.Zakharov, A.V.Berdyugin, A.V.Bozhenok, D.A.Bukin, E.E.Pyata, E.V.Pakhtusova, G.A.Kukartsev, I.A.Gaponenko, M.N.Achasov, M.S.Dubrovin, S.I.Dolinsky, S.I.Serednyakov, S.V.Burdin, S.V.Koshuba, T.V.Dimova, V.A.Sidorov, V.B.Golubev, V.M.Aulchenko, V.N.Ivanchenko, V.P.Druzhinin, V.V.Shary, Yu.S.Velikzhanin, Yu.V.Usov, Z.K.Silagadze","submitted_at":"1999-07-19T14:23:04Z","abstract_excerpt":"SND (Spherical Neutral Detector) is a general purpose nonmagnetic detector, successfully operating at Novosibirsk VEPP-2M collider during last four years in the center of mass energy range from 400 MeV up to 1400 MeV. Its crucial part is a 3-layer, fine grained, spherical NaI(Tl) electromagnetic calorimeter consisted of 1632 individual counters. Here we present a detailed description of the calorimeter and its performance, including such topics as calorimeter design, electronics, calibration, energy and spatial resolutions, particle identification. The calorimeter performance is illustrated by"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9907038","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/9907038/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}