Journal
JOURNAL OF INSTRUMENTATION
Volume 8, Issue -, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1748-0221/8/09/P09009
Keywords
Gamma detectors (scintillators, CZT, HPG, HgI etc); Calorimeters; Large detector systems for particle and astroparticle physics
Categories
Funding
- Austrian Federal Ministry of Science and Research
- Austrian Science Fund
- Belgian Fonds de la Recherche Scientifique
- Fonds voor Wetenschappelijk Onderzoek
- CNPq
- CAPES
- FAPERJ
- FAPESP
- Bulgarian Ministry of Education, Youth and Science
- CERN
- Chinese Academy of Sciences
- Ministry of Science and Technology
- National Natural Science Foundation of China
- Colombian Funding Agency (COLCIENCIAS)
- Croatian Ministry of Science, Education and Sport
- Research Promotion Foundation, Cyprus
- Ministry of Education and Research [SF0690030s09]
- European Regional Development Fund, Estonia
- Academy of Finland
- Finnish Ministry of Education and Culture
- Helsinki Institute of Physics
- Institut National de Physique Nucleaire et de Physique des Particules / CNRS
- Commissariat a l'Energie Atomique et aux Energies Alternatives / CEA, France
- Bundesministerium fur Bildung und Forschung
- Deutsche Forschungsgemeinschaft
- Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
- General Secretariat for Research and Technology, Greece
- National Scientific Research Foundation
- National Office for Research and Technology, Hungary
- Department of Atomic Energy
- Department of Science and Technology, India
- Institute for Studies in Theoretical Physics and Mathematics, Iran
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare, Italy
- Korean Ministry of Education, Science and Technology
- World Class University program of NRF, Republic of Korea
- Lithuanian Academy of Sciences
- CINVESTAV
- CONACYT
- SEP
- UASLP-FAI
- Ministry of Science and Innovation, New Zealand
- Pakistan Atomic Energy Commission
- Ministry of Science and Higher Education
- National Science Centre, Poland
- Fundacao para a Cienciae a Tecnologia, Portugal
- JINR (Armenia)
- JINR (Belarus)
- JINR (Georgia)
- JINR (Ukraine)
- JINR (Uzbekistan)
- Ministry of Education and Science of the Russian Federation
- Federal Agency of Atomic Energy of the Russian Federation
- Russian Academy of Sciences
- Russian Foundation for Basic Research
- Ministry of Science and Technological Development of Serbia
- Secretaria de Estado de Investigacion, Desarrollo e Innovacion
- Programa Consolider-Ingenio, Spain
- ETH Board
- ETH Zurich
- PSI
- SNF
- UniZH
- Canton Zurich
- SER
- National Science Council, Taipei
- Thailand Center of Excellence in Physics
- Institute for the Promotion of Teaching Science and Technology of Thailand
- National Science and Technology Development Agency of Thailand
- Scientific and Technical Research Council of Turkey
- Turkish Atomic Energy Authority
- Science and Technology Facilities Council, U.K.
- US Department of Energy
- US National Science Foundation
- Marie-Curie programme
- European Research Council
- EPLANET (European Union)
- Leventis Foundation
- A. P. Sloan Foundation
- Alexander von Humboldt Foundation
- Belgian Federal Science Policy Office
- Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
- Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
- Ministry of Education, Youth and Sports (MEYS) of Czech Republic
- Council of Science and Industrial Research, India
- Compagnia di San Paolo (Torino)
- HOMING PLUS programme of Foundation for Polish Science
- EU, Regional Development Fund
- Thalis programme
- Aristeia programme
- EU-ESF
- Greek NSRF
- Science and Technology Facilities Council [ST/I005912/1, ST/F007094/1, ST/K001604/1, ST/K003844/1, ST/J004901/1, ST/I505572/1, ST/I000410/1, ST/L00609X/1, ST/J005665/1, ST/K001256/1, ST/L00609X/1 GRIDPP, GRIDPP, ST/K003844/1 GRIDPP, ST/G502347/1, CMS, ST/F006748/1, ST/I002200/1, ST/I005912/1 GRIDPP] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205960, 1306951] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1151640, 1211067, 0969555, 1314131, 0906479] Funding Source: National Science Foundation
Ask authors/readers for more resources
The energy calibration and resolution of the electromagnetic calorimeter (ECAL) of the CMS detector have been determined using proton-proton collision data from LHC operation in 2010 and 2011 at a centre-of-mass energy of root s = 7 TeV with integrated luminosities of about 5 fb(-1). Crucial aspects of detector operation, such as the environmental stability, alignment, and synchronozation, are presented. The in-situ calibration procedures are discussed in detail and include the maintenance of the calibration in the challenging radiation environment inside the CMS detector. The energy resolution for electrons from Z-boson decays is better than 2% in the central region of the ECAL barrel (for pseudorapidity vertical bar eta vertical bar < 0.8) and is 2-5% elsewhere. The derived energy resolution for photons from 125GeV Higgs boson decays varies across the barrel from 1.1% to 2.6% and from 2.2% to 5% in the endcaps. The calibration of the absolute energy is determined from Z -> e(+)e(-) decays to a precision of 0.4% in the barrel and 0.8% in the endcaps.
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