Publication
Energy Calibration and Resolution of the CMS Electromagnetic Calorimeter in $pp$ Collisions at $\sqrt{s} = 7$ TeV
| dc.contributor.author | CMS collaboration (2203 authors) | |
| dc.contributor.author | Hollar, Jonathan | |
| dc.contributor.author | Nayak, Aruna | |
| dc.contributor.author | Calpas, Betty | |
| dc.contributor.author | Almeida, Nuno | |
| dc.contributor.author | Bargassa, Pedrame | |
| dc.contributor.author | David Tinoco Mendes, Andre | |
| dc.contributor.author | Faccioli, Pietro | |
| dc.contributor.author | Ferreira Parracho, Pedro Guilherme | |
| dc.contributor.author | Gallinaro, Michele | |
| dc.contributor.author | Rodrigues Antunes, Joao | |
| dc.contributor.author | Seixas, Joao | |
| dc.contributor.author | Varela, Joao | |
| dc.contributor.author | Vischia, Pietro | |
| dc.contributor.author | Lloret Iglesias, Lara | |
| dc.contributor.author | Musella, Pasquale | |
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Pela, Joao | |
| dc.contributor.author | Leonardo, Nuno | |
| dc.date.accessioned | 2019-02-03T23:01:18Z | |
| dc.date.available | 2019-02-03T23:01:18Z | |
| dc.date.issued | 2013-09-19 | |
| dc.date.updated | 2019-02-03T23:01:18Z | |
| dc.description.abstract | The energy calibration and resolution of the electromagneticcalorimeter (ECAL) of the CMS detector have been determined usingproton-proton collision data from LHC operation in 2010 and 2011 at acentre-of-mass energy of √s = 7 TeV with integrated luminositiesof about 5\fbinv.Crucial aspects of detector operation, such as the environmentalstability, alignment, and synchronization, are presented. The in-situcalibration procedures are discussed in detail and include themaintenance of the calibration in the challenging radiationenvironment inside the CMS detector. The energy resolution forelectrons from Z-boson decays is better than 2% in the centralregion of the ECAL barrel (for pseudorapidity |η| < 0.8) and is2–5% elsewhere. The derived energy resolution for photons from125 GeV Higgs boson decays varies across the barrel from 1.1% to2.6% and from 2.2% to 5% in the endcaps. The calibration of theabsolute energy is determined from Z→e+e− decays to aprecision of 0.4% in the barrel and 0.8% in the endcaps. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | JINST 8 (2013) 9009; DOI 10.1088/1748-0221/8/09/P09009 | |
| dc.identifier.uri | http://dx.doi.org/10.1088/1748-0221/8/09/P09009 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26437 | |
| dc.language.iso | eng | |
| dc.title | Energy Calibration and Resolution of the CMS Electromagnetic Calorimeter in $pp$ Collisions at $\sqrt{s} = 7$ TeV | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |