Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √s = 8 TeV

The CMS collaboration

doi:10.1088/1748-0221/10/06/P06005

Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √s = 8 TeV

The CMS collaboration

A. Alikhanian Yerevan Institute of Physics
Institut fÃ¼r Hochenergiephysik der OeAW
TU Wien
CERN
Belarusian State University
University of Antwerp
Vrije Universiteit Brussel
Texas A&M University at Qatar
Université libre de Bruxelles
Ghent University
Université catholique de Louvain
Institut Pluridisciplinaire - Hubert Curien (IPHC)
National Institute of Chemical Physics and Biophysics, Tallinn
Lomonosov Moscow State University
Universite de Mons
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Federal do ABC
Universidade Estadual Paulista Júlio de Mesquita Filho
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
CAS - Institute of High Energy Physics
IN2P3-CNRS
Peking University
Universidad de los Andes Colombia
Universidad de Cantabria
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Suez University
Cairo University
Al-Fayoum University
The British University in Egypt
Ain Shams University
University of Helsinki
Helsinki Institute of Physics
Lappeenranta-Lahti University of Technology
CEA/Saclay
Université de Haute-Alsace
CNRS/IN2P3-Univ Mediterranee
Universite Claude Bernard Lyon 1
RWTH Aachen University
German Electron Synchrotron
Brandenburg University of Technology
University of Hamburg
Karlsruhe Institute of Technology
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute for Nuclear Research
Eötvös Loránd University
University of Debrecen
National Institute of Science Education and Research
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Bhabha Atomic Research Centre
Tata Institute of Fundamental Research
Visva-Bharati University
King Abdulaziz University
University of Ruhuna
Indian Institute of Science Education and Research Pune
Institute for Research for Fundamental Sciences
Isfahan University of Technology
University of Tehran
Islamic Azad University
University College Dublin
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
University of Catania
University of Florence
University of Genoa
University of Milan - Bicocca
Università G. Marconi (Roma)
University of Naples Federico II
University of Padua
University of Pavia
University of Perugia
University of Siena
Scuola Normale Superiore di Pisa
University of Pisa
CNRS
Purdue University
University of Rome La Sapienza
University of Turin
University of Eastern Piedmont
University of Trieste
Kangwon National University
Kyungpook National University
Jeonbuk National University
Chonnam National University
Korea University
Seoul National University
University of Seoul
Sungkyunkwan University
Vilnius University
University of Malaya
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
Universidad Autonoma de San Luis Potosi
The University of Auckland
University of Canterbury
Quaid-I-Azam University
National Centre for Nuclear Research
University of Warsaw
Laboratório de Instrumentação e Física Experimental de Partículas
RAS - Institute for Nuclear Research
RAS - Saint Petersburg Nuclear Physics Institute
Peter the Great St. Petersburg Polytechnic University
Alikhanov Institute for Theoretical and Experimental Physics
RAS - P.N. Lebedev Physics Institute
Moscow Engineering Physics Institute
California Institute of Technology
University of Trento
Institute for High Energy Physics
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
Paul Scherrer Institute
ETH Zurich—Institute for Particle Physics and Astrophysics (IPA)
University of Bern
University of Zurich
National Central University
National Taiwan University
Chulalongkorn University
Cukurova University
Gaziosmanpasa University
Adiyaman University
Mersin University
Cag University
Piri Reis University
Middle East Technical University
Anadolu University
Ozyegin University
Izmir Institute of Technology
Necmettin Erbakan University
Mimar Sinan Guzel Sanatlar University
Bogazici University
Marmara University
Kafkas University
Yildiz Technical University
Istanbul Technical University
NASU - Kharkov Institute of Physics and Technology
University of Bristol
Rutherford Appleton Laboratory
University of Southampton
Imperial College London
Brunel University London
Baylor University
University of Alabama
Boston University
Brown University
University of California at Davis
University of California at Los Angeles
University of California at Riverside
University of California at San Diego
University of California at Santa Barbara
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Fairfield University
Fermi Natl. Accelerator Laboratory
University of Florida
Florida International University
Florida State University
Florida Institute of Technology
University of Illinois at Chicago
Argonne National Laboratory
University of Iowa
Erzincan University
Johns Hopkins University
University of Kansas
Kansas State University
Lawrence Livermore Natl. Lab.
University of Maryland, College Park
Massachusetts Institute of Technology
University of Minnesota Twin Cities
University of Mississippi
University of Nebraska-Lincoln
SUNY Buffalo
Northeastern University
Northwestern University
University of Notre Dame
Ohio State University
Princeton University
University of Puerto Rico
Purdue University Northwest
Rice University
University of Rochester
Rockefeller University
Rutgers - The State University of New Jersey, New Brunswick
University of Tennessee, Knoxville
Texas A&M University
Texas Tech University
Vanderbilt University
University of Virginia
Wayne State University
University of Wisconsin-Madison

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

409 Citations (Scopus)

Abstract

The performance and strategies used in electron reconstruction and selection at CMS are presented based on data corresponding to an integrated luminosity of 19.7 fb^-1, collected in proton-proton collisions at √s = 8 TeV at the CERN LHC. The paper focuses on prompt isolated electrons with transverse momenta ranging from about 5 to a few 100 GeV. A detailed description is given of the algorithms used to cluster energy in the electromagnetic calorimeter and to reconstruct electron trajectories in the tracker. The electron momentum is estimated by combining the energy measurement in the calorimeter with the momentum measurement in the tracker. Benchmark selection criteria are presented, and their performances assessed using Z, , and J/ψ decays into e⁺ + e^- pairs. The spectra of the observables relevant to electron reconstruction and selection as well as their global efficiencies are well reproduced by Monte Carlo simulations. The momentum scale is calibrated with an uncertainty smaller than 0.3%. The momentum resolution for electrons produced in Z boson decays ranges from 1.7 to 4.5%, depending on electron pseudorapidity and energy loss through bremsstrahlung in the detector material.

Original language	English
Article number	P06005
Journal	Journal of Instrumentation
Volume	10
Issue number	6
DOIs	https://doi.org/10.1088/1748-0221/10/06/P06005
Publication status	Published - 1 Jun 2015
Externally published	Yes

Keywords

Pattern recognition
Performance of High Energy Physics Detectors
calibration and fitting methods
cluster finding

Access to Document

10.1088/1748-0221/10/06/P06005

Cite this

@article{36c6c1e318a04334939b563904ce7ac0,

title = "Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √s = 8 TeV",

abstract = "The performance and strategies used in electron reconstruction and selection at CMS are presented based on data corresponding to an integrated luminosity of 19.7 fb-1, collected in proton-proton collisions at √s = 8 TeV at the CERN LHC. The paper focuses on prompt isolated electrons with transverse momenta ranging from about 5 to a few 100 GeV. A detailed description is given of the algorithms used to cluster energy in the electromagnetic calorimeter and to reconstruct electron trajectories in the tracker. The electron momentum is estimated by combining the energy measurement in the calorimeter with the momentum measurement in the tracker. Benchmark selection criteria are presented, and their performances assessed using Z, , and J/ψ decays into e+ + e- pairs. The spectra of the observables relevant to electron reconstruction and selection as well as their global efficiencies are well reproduced by Monte Carlo simulations. The momentum scale is calibrated with an uncertainty smaller than 0.3\%. The momentum resolution for electrons produced in Z boson decays ranges from 1.7 to 4.5\%, depending on electron pseudorapidity and energy loss through bremsstrahlung in the detector material.",

keywords = "Pattern recognition, Performance of High Energy Physics Detectors, calibration and fitting methods, cluster finding",

author = "\{The CMS collaboration\} and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and V. Kn{\"u}nz and M. Krammer and I. Kr{\"a}tschmer and D. Liko and I. Mikulec and D. Rabady and B. Rahbaran and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and \{Treberer- Treberspurg\}, W. and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and S. Bansal and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and J. Lauwers and S. Luyckx and S. Ochesanu and R. Rougny and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Van Spilbeeck\}, A. and F. Blekman and S. Blyweert and J. D{\textquoteright}Hondt and O. Bouhali",

note = "Publisher Copyright: {\textcopyright} CERN 2015 for the benefit of the CMS collaboration..",

year = "2015",

month = jun,

day = "1",

doi = "10.1088/1748-0221/10/06/P06005",

language = "English",

volume = "10",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "Institute of Physics",

number = "6",

}

TY - JOUR

T1 - Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √s = 8 TeV

AU - The CMS collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Knünz, V.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Treberer- Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Lauwers, J.

AU - Luyckx, S.

AU - Ochesanu, S.

AU - Rougny, R.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Blekman, F.

AU - Blyweert, S.

AU - D’Hondt, J.

AU - Bouhali, O.

PY - 2015/6/1

Y1 - 2015/6/1

N2 - The performance and strategies used in electron reconstruction and selection at CMS are presented based on data corresponding to an integrated luminosity of 19.7 fb-1, collected in proton-proton collisions at √s = 8 TeV at the CERN LHC. The paper focuses on prompt isolated electrons with transverse momenta ranging from about 5 to a few 100 GeV. A detailed description is given of the algorithms used to cluster energy in the electromagnetic calorimeter and to reconstruct electron trajectories in the tracker. The electron momentum is estimated by combining the energy measurement in the calorimeter with the momentum measurement in the tracker. Benchmark selection criteria are presented, and their performances assessed using Z, , and J/ψ decays into e+ + e- pairs. The spectra of the observables relevant to electron reconstruction and selection as well as their global efficiencies are well reproduced by Monte Carlo simulations. The momentum scale is calibrated with an uncertainty smaller than 0.3%. The momentum resolution for electrons produced in Z boson decays ranges from 1.7 to 4.5%, depending on electron pseudorapidity and energy loss through bremsstrahlung in the detector material.

AB - The performance and strategies used in electron reconstruction and selection at CMS are presented based on data corresponding to an integrated luminosity of 19.7 fb-1, collected in proton-proton collisions at √s = 8 TeV at the CERN LHC. The paper focuses on prompt isolated electrons with transverse momenta ranging from about 5 to a few 100 GeV. A detailed description is given of the algorithms used to cluster energy in the electromagnetic calorimeter and to reconstruct electron trajectories in the tracker. The electron momentum is estimated by combining the energy measurement in the calorimeter with the momentum measurement in the tracker. Benchmark selection criteria are presented, and their performances assessed using Z, , and J/ψ decays into e+ + e- pairs. The spectra of the observables relevant to electron reconstruction and selection as well as their global efficiencies are well reproduced by Monte Carlo simulations. The momentum scale is calibrated with an uncertainty smaller than 0.3%. The momentum resolution for electrons produced in Z boson decays ranges from 1.7 to 4.5%, depending on electron pseudorapidity and energy loss through bremsstrahlung in the detector material.

KW - Pattern recognition

KW - Performance of High Energy Physics Detectors

KW - calibration and fitting methods

KW - cluster finding

UR - https://www.scopus.com/pages/publications/84936980593

U2 - 10.1088/1748-0221/10/06/P06005

DO - 10.1088/1748-0221/10/06/P06005

M3 - Article

AN - SCOPUS:84936980593

SN - 1748-0221

VL - 10

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 6

M1 - P06005

ER -

Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √s = 8 TeV

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this