2013

Energy calibration and resolution of the CMS electromagnetic calorimeter in pp collisions at sqrt(s) = 7 TeV

CMS Collaboration

Understand

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 sqrt(s)=7 TeV with integrated luminosities of about 5 inverse femtobarns.

Crucial aspects of detector operation, such as the environmental stability, alignment, and synchronization, 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 abs(eta)<0.8) and is 2-5% elsewhere.

Built on

M. Rosenblatt, “Remarks on some nonparametric estimates of a density function”, Ann. Math. Statist
1956
Earlier work this paper cites.
E. Parzen, “On estimation of a probability density function and mode”, Ann. Math. Statist
1962
Earlier work this paper cites.
PhD thesis, Stanford University, 1980
M. J. Oreglia, “A study of the reactions ψ ′ → γ γ ψ \psi^{\prime}\to\gamma\gamma\psi ” · 1980
Earlier work this paper cites.
CMS Collaboration, “The Electromagnetic Calorimeter Project: Technical Design Report”, Technical Report CERN-LHCC-1997-033; CMS-TDR-4, (1997)
1997
Earlier work this paper cites.
S. Baccaro et al., “Radiation damage effect on avalanche photodiodes”, Nucl. Instrum. Meth. A
1999
Earlier work this paper cites.
U. Chaturvedi et al., “Results of L3 BGO calorimeter calibration using an RFQ accelerator”, IEEE Trans. Nucl. Sci
2000
Earlier work this paper cites.
P. Aspell et al., “Results from the 1999 Beam Test of a Preshower Prototype”, CMS Note CMS-NOTE-2000-001, (2000)
2000
Earlier work this paper cites.
E. Auffray et al., “Status of the PWO crystal production from Russia for CMS-ECAL”, Nucl. Instrum. Meth. A
2002
Earlier work this paper cites.
E. Auffray et al., “Crystal conditioning for high-energy physics detectors”, Nucl. Instrum. Meth. A
2002
Earlier work this paper cites.
F.-X. Gentit, “Litrani: a general purpose Monte-Carlo program simulating light propagation in isotropic or anisotropic media”, Nucl. Instr. Meth. A
2002
Earlier work this paper cites.
GEANT4 Collaboration, “GEANT4—a simulation toolkit”, Nucl. Instrum. Meth. A
2003
Earlier work this paper cites.
World Scientific, 2003
P. Baillon et al., “Performance of the cooling system of the CMS ECAL”, in Proceedings of the 8th conference on Astroparticle, Particle and Space Physics, Detectors and Medical Applications · 2003
Earlier work this paper cites.
D. Futyan and C. Seez, “Intercalibration of the CMS electromagnetic calorimeter crystals in ϕ \phi using symmetry of energy deposition”, J. Phys. G
2003
Earlier work this paper cites.
Z. Antunovic et al., “Radiation hard avalanche photodiodes for the CMS detector”, Nucl. Instrum. Meth. A
2004
Earlier work this paper cites.
K. W. Bell et al., “Vacuum phototriodes for the CMS electromagnetic calorimeter endcap”, IEEE Trans. Nucl. Sci
2004
Earlier work this paper cites.
R. H. Mao, L. Y. Zhang, and R. Y. Zhu, “Quality of mass-produced lead tungstate crystals”, IEEE Trans. Nucl. Sci
2004
Earlier work this paper cites.

Similar

A. Van Lysebetten and P. Verrecchia, “Performance and measurements of the light monitoring system for CMS-ECAL from 2002 test beam data”, CMS Rapid Note CMS-RN-2004-001, (2004)
2004
Cited alongside, same era.
L.-Y. Zhang et al., “Performance of the monitoring light source for the CMS lead tungstate crystal calorimeter”, IEEE Trans. Nucl. Sci
2005
Cited alongside, same era.
J. Allison et al., “Geant4 developments and applications”, IEEE Trans. Nucl. Sci
2006
Cited alongside, same era.
P. Adzic et al., “Reconstruction of the signal amplitude of the CMS electromagnetic calorimeter”, Eur. Phys. J. C
2006
Cited alongside, same era.
CMS Collaboration, “CMS Physics: Technical Design Report Vol. 1: Detector Performance and Software”, TDR CERN-LHCC-2006-001; CMS-TDR-1, (2006)
2006
Cited alongside, same era.
P. Adzic et al., “Results of the first performance tests of the CMS electromagnetic calorimeter”, Eur. Phys. J. C
2006
Cited alongside, same era.
A. Ghezzi et al., “Analysis of the response evolution of the CMS electromagnetic calorimeter under electron and pion irradiation”, CMS Note CMS-NOTE-2006-038, (2006)
2006
Cited alongside, same era.
P. Adzic et al., “Energy resolution of the barrel of the CMS electromagnetic calorimeter”, JINST
2007
Cited alongside, same era.
A. Bartoloni et al., “High voltage system for the CMS electromagnetic calorimeter”, Nucl. Instrum. Meth. A
2007
Cited alongside, same era.
S. Baffioni et al., “Electron reconstruction in CMS”, Eur. Phys. J. C
2007
Cited alongside, same era.
L. Agostino et al., “Intercalibration of the CMS electromagnetic calorimeter with isolated electrons”, J. Phys. G
2007
Cited alongside, same era.
CMS Collaboration, “The CMS experiment at the CERN LHC”, JINST
2008
Cited alongside, same era.

Then

CMS Collaboration, “Time reconstruction and performance of the CMS electromagnetic calorimeter”, JINST
2010
Later among the works it cites.
CMS Collaboration, “Measurement of the muon stopping power of lead tungstate”, JINST
2010
Later among the works it cites.
CMS Collaboration, “Performance and operation of the CMS electromagnetic calorimeter”, JINST
2010
Later among the works it cites.
P. Adzic et al., “Radiation hardness qualification of PbWO 4 scintillation crystals for the CMS Electromagnetic Calorimeter”, JINST
2010
Later among the works it cites.
CMS Collaboration, “Electromagnetic calorimeter commissioning and first results with 7 TeV data”, CMS Note CMS-NOTE-2010-012, (2010)
2010
Later among the works it cites.
CMS Collaboration, “Electron Reconstruction and Identification at s = 7 \sqrt{s}=7 TeV”, CMS Physics Analysis Summary CMS-PAS-EGM-10-004, (2010)
2010
Later among the works it cites.
CMS Collaboration, “Electromagnetic calorimeter calibration with 7 TeV data”, CMS Physics Analysis Summary CMS-PAS-EGM-10-003, (2010)
2010
Later among the works it cites.
CMS Collaboration, “Photon reconstruction and identification at s \sqrt{s} = 7 TeV”, CMS Physics Analysis Summary CMS-PAS-EGM-10-005, (2010)
2010
Later among the works it cites.
CMS Collaboration, “Altered scenarios of the CMS Tracker material for systematic uncertainties studies”, CMS Note CMS-NOTE-2010-010, (2010)
2010
Later among the works it cites.
CMS Collaboration, “Studies of Tracker Material in the CMS Detector”, CMS Physics Analysis Summary CMS-PAS-TRK-10-003, (2010)
2010
Later among the works it cites.
CMS Collaboration, “Measurements of inclusive W and Z cross sections in pp collisions at s = 7 \sqrt{s}=7 TeV”, JHEP
2011
Later among the works it cites.
CMS Collaboration, “Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC”, Phys. Lett. B
2012
Later among the works it cites.
CMS Collaboration, “Search for the standard model Higgs boson decaying into two photons in pp collisions at s = 7 \sqrt{s}=7 TeV”, Phys. Lett. B
2012
Later among the works it cites.
Particle Data Group, J. Beringer et al., “Review of Particle Physics”, Phys. Rev. D
2012
Later among the works it cites.
CMS Collaboration, “Observation of a new boson with mass near 125 GeV in pp collisions at s = 7 \sqrt{s}=7 and 8 TeV”, JHEP
2013
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

Reading the bibliography…