Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data

ATLAS Collaboration

doi:10.1140/epjc/s10052-017-4756-2

Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data

ATLAS Collaboration

School of Physics and Astronomy

Mohamed I University
Aix-Marseille Université
Homer L. Dodge Department of Physics and Astronomy
University of Oklahoma
Department of Physics
University of Texas at Arlington
Azerbaijan National Academy of Sciences
Université Paris-Sud
University of California at Santa Cruz
Department of Physics and Astronomy
University of Sussex
Physics Department
Technion-Israel Institute of Technology
Center for High Energy Physics
University of Oregon
Department of Physics
Stockholm University
Oskar Klein Centre
INFN
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
International Center for Elementary Particle Physics and Department of Physics
The University of Tokyo
Faculty of Physics and Applied Computer Science
AGH University of Krakow
Physics Department
Brookhaven National Laboratory
Department of Physics
Northern Illinois University
Fakultät für Physik
Ludwig Maximilian University of Munich
Rutherford Appleton Laboratory
Institute of Physics
University of Belgrade
Laboratório de Instrumentação e Física Experimental de Partículas
Departamento de Fisica Teorica y del Cosmos and CAFPE
University of Granada
Boston University
Joint Institute for Nuclear Research
Dipartimento di Fisica
University of Rome Tor Vergata
Fysiska Institutionen
Lund University
RAS - P.N. Lebedev Physics Institute
Dipartimento di Fisica e Astronomia
University of Bologna
Department of Physics and Astronomy
University of Victoria BC
Université Grenoble Alpes
Instituto de Física La Plata
CERN
Horia Hulubei National Institute of Physics and Nuclear Engineering
Physics Department
National Technical University of Athens
Czech Technical University in Prague
Dipartimento di Matematica e Fisica
University of Salento
Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

87 Scopus citations

Abstract

This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 pp collision data produced by the LHC at s = 8 TeV. The efficiency of these algorithms, together with the charge misidentification rate, is measured in data and evaluated in simulated samples using electrons from Z→ ee, Z→ eeγ and J/ ψ→ ee decays. For these efficiency measurements, the full recorded data set, corresponding to an integrated luminosity of 20.3 fb^{- 1}, is used. Based on a new reconstruction algorithm used in 2012, the electron reconstruction efficiency is 97% for electrons with E_T= 15 GeV and 99% at E_T= 50 GeV. Combining this with the efficiency of additional selection criteria to reject electrons from background processes or misidentified hadrons, the efficiency to reconstruct and identify electrons at the ATLAS experiment varies from 65 to 95%, depending on the transverse momentum of the electron and background rejection.

Original language	English
Article number	195
Journal	European Physical Journal C
Volume	77
Issue number	3
DOIs	https://doi.org/10.1140/epjc/s10052-017-4756-2
State	Published - 1 Mar 2017

Funding

Funders	Funder number
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Stichting voor Fundamenteel Onderzoek der Materie
Agence Nationale de la Recherche
Australian Research Council
Centre National pour la Recherche Scientifique et Technique
Fundação para a Ciência e a Tecnologia
National Research Foundation of Korea
Comisión Nacional de Investigación Científica y Tecnológica
Narodowe Centrum Nauki
H2020 Marie Skłodowska-Curie Actions
Région Auvergne
CEA-DSM
Japan Society for the Promotion of Science
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministry of Science and Technology, Taiwan
Israel Science Foundation
Wallenberg Foundation
Leverhulme Trust
Arizona-Nevada Academy of Science
Javna Agencija za Raziskovalno Dejavnost RS
Generalitat de Catalunya
Instituto Nazionale di Fisica Nucleare
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
Austrian Science Fund
Department of Science and Technology, Ministry of Science and Technology, India
MSMT
MSSR
Ministerio de Economía y Competitividad
Bundesministerium für Bildung und Forschung
Canada Foundation for Innovation
Helmholtz-Gemeinschaft
Danmarks Grundforskningsfond
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Czech Republic
Singapore Eye Research Institute
Canarie
Ontario Innovation Trust
Georgian National Science Foundation
MIZŠ
Deutsche Forschungsgemeinschaft
United States-Israel Binational Science Foundation
European Commission
MESTD
U.S. Department of Energy
EU-ESF
RGC
Fundação de Amparo à Pesquisa do Estado de São Paulo
Israeli Centers for Research Excellence
Biomedical Research Foundation
MES of Russia
National Research Center "Kurchatov Institute"
Institutul de Fizică Atomică
Natural Sciences and Engineering Research Council of Canada
General Secretariat for Research and Technology
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
German-Israeli Foundation for Scientific Research and Development
Fonds Québécois de la Recherche sur la Nature et les Technologies
Cantons of Bern and Geneva
Canada Council for the Arts
Chinese Academy of Sciences
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
VSC CR
CRC Health Group
Compute Canada
MNE
Agencia Nacional de Promoción Científica y Tecnológica
Royal Society
Minerva Foundation
European Research Council
European Regional Development Fund
Ministerstwo Edukacji i Nauki
IRFU
Generalitat Valenciana
CERN
Joint Institute for Nuclear Research
Fondation Partager le Savoir
National Research Council Canada
Alexander von Humboldt-Stiftung
Council on grants of the President of the Russian Federation
Horizon 2020
British Columbia Knowledge Development Fund
Ministry of Education, Culture, Sports, Science and Technology
National Natural Science Foundation of China
???publication-publication-funding-organisation-not-added???	ST/H001093/2, GRIDPP, ST/N000420/1
National Science Foundation	1624739
Seventh Framework Programme	246806
DNSRC	IN2P3-CNRS

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10.1140/epjc/s10052-017-4756-2

Cite this

@article{c6608c62bf124c559352eaec548b33e1,

title = "Electron efficiency measurements with the ATLAS detector using 2012 LHC proton{\textendash}proton collision data",

abstract = "This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 pp collision data produced by the LHC at s = 8 TeV. The efficiency of these algorithms, together with the charge misidentification rate, is measured in data and evaluated in simulated samples using electrons from Z→ ee, Z→ eeγ and J/ ψ→ ee decays. For these efficiency measurements, the full recorded data set, corresponding to an integrated luminosity of 20.3 fb- 1, is used. Based on a new reconstruction algorithm used in 2012, the electron reconstruction efficiency is 97\% for electrons with ET= 15 GeV and 99\% at ET= 50 GeV. Combining this with the efficiency of additional selection criteria to reject electrons from background processes or misidentified hadrons, the efficiency to reconstruct and identify electrons at the ATLAS experiment varies from 65 to 95\%, depending on the transverse momentum of the electron and background rejection.",

author = "\{ATLAS Collaboration\} and M. Aaboud and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and B. Abeloos and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and S. Adachi and L. Adamczyk and Adams, \{D. L.\} and J. Adelman and S. Adomeit and T. Adye and Affolder, \{A. A.\} and T. Agatonovic-Jovin and Aguilar-Saavedra, \{J. A.\} and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and B. Ali and M. Aliev and A. Ashkenazi and L. Barak and G. Bella and Y. Benhammou and T. Cao and E. Etzion and O. Kuprash and Y. Oren and M. Pitt and A. Soffer",

note = "Publisher Copyright: {\textcopyright} 2017, CERN for the benefit of the ATLAS collaboration.",

year = "2017",

month = mar,

day = "1",

doi = "10.1140/epjc/s10052-017-4756-2",

language = "אנגלית",

volume = "77",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "3",

}

TY - JOUR

T1 - Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data

AU - ATLAS Collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Abeloos, B.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Ali, B.

AU - Aliev, M.

AU - Ashkenazi, A.

AU - Barak, L.

AU - Bella, G.

AU - Benhammou, Y.

AU - Cao, T.

AU - Etzion, E.

AU - Kuprash, O.

AU - Oren, Y.

AU - Pitt, M.

AU - Soffer, A.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 pp collision data produced by the LHC at s = 8 TeV. The efficiency of these algorithms, together with the charge misidentification rate, is measured in data and evaluated in simulated samples using electrons from Z→ ee, Z→ eeγ and J/ ψ→ ee decays. For these efficiency measurements, the full recorded data set, corresponding to an integrated luminosity of 20.3 fb- 1, is used. Based on a new reconstruction algorithm used in 2012, the electron reconstruction efficiency is 97% for electrons with ET= 15 GeV and 99% at ET= 50 GeV. Combining this with the efficiency of additional selection criteria to reject electrons from background processes or misidentified hadrons, the efficiency to reconstruct and identify electrons at the ATLAS experiment varies from 65 to 95%, depending on the transverse momentum of the electron and background rejection.

AB - This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 pp collision data produced by the LHC at s = 8 TeV. The efficiency of these algorithms, together with the charge misidentification rate, is measured in data and evaluated in simulated samples using electrons from Z→ ee, Z→ eeγ and J/ ψ→ ee decays. For these efficiency measurements, the full recorded data set, corresponding to an integrated luminosity of 20.3 fb- 1, is used. Based on a new reconstruction algorithm used in 2012, the electron reconstruction efficiency is 97% for electrons with ET= 15 GeV and 99% at ET= 50 GeV. Combining this with the efficiency of additional selection criteria to reject electrons from background processes or misidentified hadrons, the efficiency to reconstruct and identify electrons at the ATLAS experiment varies from 65 to 95%, depending on the transverse momentum of the electron and background rejection.

UR - https://www.scopus.com/pages/publications/85016328339

U2 - 10.1140/epjc/s10052-017-4756-2

DO - 10.1140/epjc/s10052-017-4756-2

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AN - SCOPUS:85016328339

SN - 1434-6044

VL - 77

JO - European Physical Journal C

JF - European Physical Journal C

IS - 3

M1 - 195

ER -

Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data

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