Mitigation of Anomalous APD Signals in the CMS Electromagnetic Calorimeter

Anomalous, large signals are observed in the barrel region of the CMS electromagnetic calorimeter during pp collisions at the LHC. Laboratory and beam-test studies, as well as Monte Carlo simulations, have been used to understand their origin. They are ascribed to direct energy depositions by partic...

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Detalles Bibliográficos
Autor principal: Theofilatos, Konstantinos
Lenguaje:eng
Publicado: 2012
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1494647
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author Theofilatos, Konstantinos
author_facet Theofilatos, Konstantinos
author_sort Theofilatos, Konstantinos
collection CERN
description Anomalous, large signals are observed in the barrel region of the CMS electromagnetic calorimeter during pp collisions at the LHC. Laboratory and beam-test studies, as well as Monte Carlo simulations, have been used to understand their origin. They are ascribed to direct energy depositions by particles in the Avalanche Photo-Diodes used for the scintillation light readout. Their properties and rates are summarized. The methods employed to reject these signals in the online trigger selection and in the offline event reconstruction are presented.
id cern-1494647
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14946472019-09-30T06:29:59Zhttp://cds.cern.ch/record/1494647engTheofilatos, KonstantinosMitigation of Anomalous APD Signals in the CMS Electromagnetic CalorimeterDetectors and Experimental TechniquesAnomalous, large signals are observed in the barrel region of the CMS electromagnetic calorimeter during pp collisions at the LHC. Laboratory and beam-test studies, as well as Monte Carlo simulations, have been used to understand their origin. They are ascribed to direct energy depositions by particles in the Avalanche Photo-Diodes used for the scintillation light readout. Their properties and rates are summarized. The methods employed to reject these signals in the online trigger selection and in the offline event reconstruction are presented.CMS-CR-2012-295oai:cds.cern.ch:14946472012-11-06
spellingShingle Detectors and Experimental Techniques
Theofilatos, Konstantinos
Mitigation of Anomalous APD Signals in the CMS Electromagnetic Calorimeter
title Mitigation of Anomalous APD Signals in the CMS Electromagnetic Calorimeter
title_full Mitigation of Anomalous APD Signals in the CMS Electromagnetic Calorimeter
title_fullStr Mitigation of Anomalous APD Signals in the CMS Electromagnetic Calorimeter
title_full_unstemmed Mitigation of Anomalous APD Signals in the CMS Electromagnetic Calorimeter
title_short Mitigation of Anomalous APD Signals in the CMS Electromagnetic Calorimeter
title_sort mitigation of anomalous apd signals in the cms electromagnetic calorimeter
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1494647
work_keys_str_mv AT theofilatoskonstantinos mitigationofanomalousapdsignalsinthecmselectromagneticcalorimeter

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