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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10335914" target="_blank" >RIV/00216208:11320/16:10335914 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/16:00305595 RIV/68407700:21340/16:00305595 RIV/68407700:21670/16:00305595 RIV/61989592:15310/16:33161594 RIV/68378271:_____/16:00522562
Result on the web
<a href="http://dx.doi.org/10.1140/epjc/s10052-016-4507-9" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-016-4507-9</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-016-4507-9" target="_blank" >10.1140/epjc/s10052-016-4507-9</a>

Result language
angličtina
Original language name
Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data
Original language description
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 root s = 7 TeV and 20.3 fb-1 at root 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. These factors are measured with uncertainties between 0.5% and 10% in 7 TeV data and between 0.5% and 5.6% in 8 TeV data, depending on the photon transverse momentum and pseudorapidity.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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