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Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data

SYSNO ASEP	0522562
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data
Author(s)	Aaboud, M. (MA) Aad, G. (FR) Abbott, B. (US) Chudoba, Jiří (FZU-D)_{RID, ORCID} Havránek, Miroslav (FZU-D)_RID Hejbal, Jiří (FZU-D)_{RID, ORCID} Jakoubek, Tomáš (FZU-D)_{RID, ORCID} Kepka, Oldřich (FZU-D)_{RID, ORCID} Kupčo, Alexander (FZU-D)_{RID, ORCID} Kůs, Vlastimil (FZU-D)_RID Lokajíček, Miloš (FZU-D)_{RID, ORCID} Lysák, Roman (FZU-D)_{RID, ORCID} Marčišovský, Michal (FZU-D)_{RID, ORCID} Mikeštíková, Marcela (FZU-D)_{RID, ORCID} Němeček, Stanislav (FZU-D)_{RID, ORCID} Penc, Ondřej (FZU-D)_ORCID Šícho, Petr (FZU-D)_{RID, ORCID} Staroba, Pavel (FZU-D)_{RID, ORCID} Svatoš, Michal (FZU-D)_{RID, ORCID} Taševský, Marek (FZU-D)_{RID, ORCID} Vrba, Václav (FZU-D)_{RID, ORCID}
Number of authors	2856
Article number	666
Source Title	European Physical Journal C. - : Springer - ISSN 1434-6044 Roč. 76, č. 12 (2016), s. 1-42
Number of pages	42 s.
Language	eng - English
Country	US - United States
Keywords	ATLAS ; CERN LHC Coll ; photon: rapidity ; numerical calculations: Monte Carlo ; 7000 GeV-cms ; experimental results ; 8000 GeV-cms
Subject RIV	BF - Elementary Particles and High Energy Physics
OECD category	Particles and field physics
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271
UT WOS	000389890600001
EID SCOPUS	85003480972
DOI	10.1140/epjc/s10052-016-4507-9
Annotation	The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are described. Measurements of the photon identification efficiencies are reported, using 4.9 fb−1 of pp collision data collected at the LHC at √s=7 TeV and 20.3 fb−1 at √s=8 TeV . The efficiencies are measured separately for converted and unconverted photons, in four different pseudorapidity regions, for transverse momenta between 10 GeV and 1.5 TeV . The results from the combination of three data-driven techniques are compared to the predictions from a simulation of the detector response, after correcting the electromagnetic shower momenta in the simulation for the average differences observed with respect to data. Data-to-simulation efficiency ratios used as correction factors in physics measurements are determined to account for the small residual efficiency differences.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2020
Electronic address	http://hdl.handle.net/11104/0307033

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