Calibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runs

The procedure for the initial adjustment of the LHCb ECAL energy scale is described. The calibration technique to determine the gains of photomultipliers in situ is discussed in details, including its technical implementation and the studies on possible systematic effects. Finally, the di-photon inv...

Descripción completa

Detalles Bibliográficos
Autores principales: Machikhiliyan, Irina, Lindahl, Viveca
Lenguaje:eng
Publicado: 2013
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1557395
_version_ 1780930537445130240
author Machikhiliyan, Irina
Lindahl, Viveca
author_facet Machikhiliyan, Irina
Lindahl, Viveca
author_sort Machikhiliyan, Irina
collection CERN
description The procedure for the initial adjustment of the LHCb ECAL energy scale is described. The calibration technique to determine the gains of photomultipliers in situ is discussed in details, including its technical implementation and the studies on possible systematic effects. Finally, the di-photon invariant mass distributions from early data collected in the end of 2009 in the course of the LHC start-up are presented, proving the sufficient level of the initial cell-to-cell intercalibration to detect clear signal from $\pi^0 \to \gamma \gamma$ decays.
id cern-1557395
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-15573952019-09-30T06:29:59Zhttp://cds.cern.ch/record/1557395engMachikhiliyan, IrinaLindahl, VivecaCalibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runsDetectors and Experimental TechniquesThe procedure for the initial adjustment of the LHCb ECAL energy scale is described. The calibration technique to determine the gains of photomultipliers in situ is discussed in details, including its technical implementation and the studies on possible systematic effects. Finally, the di-photon invariant mass distributions from early data collected in the end of 2009 in the course of the LHC start-up are presented, proving the sufficient level of the initial cell-to-cell intercalibration to detect clear signal from $\pi^0 \to \gamma \gamma$ decays.LHCb-PUB-2013-010CERN-LHCb-PUB-2013-010oai:cds.cern.ch:15573952013-06-25
spellingShingle Detectors and Experimental Techniques
Machikhiliyan, Irina
Lindahl, Viveca
Calibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runs
title Calibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runs
title_full Calibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runs
title_fullStr Calibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runs
title_full_unstemmed Calibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runs
title_short Calibration of photomultipliers and initial adjustment of the LHCb Electromagnetic Calorimeter for pilot LHC runs
title_sort calibration of photomultipliers and initial adjustment of the lhcb electromagnetic calorimeter for pilot lhc runs
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1557395
work_keys_str_mv AT machikhiliyanirina calibrationofphotomultipliersandinitialadjustmentofthelhcbelectromagneticcalorimeterforpilotlhcruns
AT lindahlviveca calibrationofphotomultipliersandinitialadjustmentofthelhcbelectromagneticcalorimeterforpilotlhcruns

Ejemplares similares