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Electromagnetic calorimeter time measurement applications in the SND physics analysis

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arxiv 2305.03359 v1 pith:F6WZXCFA submitted 2023-05-05 physics.ins-det

Electromagnetic calorimeter time measurement applications in the SND physics analysis

classification physics.ins-det
keywords signaltimeanalysiscalorimeterdetectorelectromagneticphysicsallow
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The SND is a non-magnetic detector at the VEPP-2000 $e^{+} e^{-}$ collider (BINP, Novosibirsk) designed for hadronic cross-section measurements in the center-of-mass energy range up to $2$ GeV. The important part of the detector is a hodoscopic electromagnetic calorimeter (EMC) with three layers of NaI(Tl) counters. The EMC signal shaping and digitizing electronics based on FADC allow to obtain both the signal amplitude and the arrival time. We describe the EMC signal processing and how the EMC measured time is applied in event reconstruction and physics analysis.

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