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Abstract:

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. 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. © 2016, CERN for the benefit of the ATLAS collaboration.

Registro:

Documento: Artículo
Título:Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data
Autor:Aaboud, M. et al.
Este artículo contiene 2857 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2857 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2016
Volumen:76
Número:12
DOI: http://dx.doi.org/10.1140/epjc/s10052-016-4507-9
Título revista:European Physical Journal C
Título revista abreviado:Eur. Phys. J. C
ISSN:14346044
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v76_n12_p_Aaboud

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Citas:

---------- APA ----------
(2016) . Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data. European Physical Journal C, 76(12).
http://dx.doi.org/10.1140/epjc/s10052-016-4507-9
---------- CHICAGO ----------
Aaboud, M. "Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data" . European Physical Journal C 76, no. 12 (2016).
http://dx.doi.org/10.1140/epjc/s10052-016-4507-9
---------- MLA ----------
Aaboud, M. "Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data" . European Physical Journal C, vol. 76, no. 12, 2016.
http://dx.doi.org/10.1140/epjc/s10052-016-4507-9
---------- VANCOUVER ----------
Aaboud, M. Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data. Eur. Phys. J. C. 2016;76(12).
http://dx.doi.org/10.1140/epjc/s10052-016-4507-9