Absolute energy calibration and the use of timing information of the BESIII EMC

Jianming Bian

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Abstract

We introduce the absolute energy calibration of the electromagnetic calorimeter at BESIII. The precision after calibration is about 0.5% and the resolution difference between data and the simulation is about 5%. We also present a method to veto beam-gas background using the timing information of the EMC, which is crucial for physics analyses involving low energy photons at BESIII.

Original languageEnglish (US)
Article number012047
JournalJournal of Physics: Conference Series
Volume293
Issue number1
DOIs
StatePublished - 2011

Bibliographical note

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Copyright 2018 Elsevier B.V., All rights reserved.

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