Journal articles
Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at sqrt(s)=8 TeV
V. Khachatryan
M. Besançon
1
F. Couderc
1
M. Dejardin
1
D. Denegri
1
B. Fabbro
1
J.L. Faure
C. Favaro
1
F. Ferri
1
S. Ganjour
1
A. Givernaud
1
P. Gras
1
G. Hamel De Monchenault
1
P. Jarry
1
E. Locci
1
J. Malcles
1
J. Rander
1
A. Rosowsky
1
M. Titov
1
S. Baffioni
2
F. Beaudette
2
P. Busson
2
E. Chapon
2
C. Charlot
2
T. Dahms
2
L. Dobrzynski
2
N. Filipovic
2
A. Florent
2
R. Granier De Cassagnac
2
L. Mastrolorenzo
2
P. Mine
2
I.N. Naranjo
2
M. Nguyen
C. Ochando
2
G. Ortona
2
P. Paganini
2
S. Regnard
2
R. Salerno
2
J.B. Sauvan
2
Y. Sirois
2
C. Veelken
2
Y. Yilmaz
2
A. Zabi
2
J.-L. Agram
3
J. Andrea
3
A. Aubin
3
D. Bloch
3
J.-M. Brom
3
E.C. Chabert
3
N. Chanon
3
C. Collard
3
E. Conte
3
J.-C. Fontaine
3
D. Gele
3
U. Goerlach
3
C. Goetzmann
3
A.-C. Le Bihan
3
K. Skovpen
3
P. Van Hove
3
S. Gadrat
4
S. Beauceron
5
N. Beaupere
5
C. Bernet
5
G. Boudoul
5
E. Bouvier
5
S. Brochet
5
C.A. Carrillo Montoya
5
J. Chasserat
5
R. Chierici
5
D. Contardo
5
B. Courbon
5
P. Depasse
5
H. El Mamouni
5
J. Fan
5
J. Fay
5
S. Gascon
5
M. Gouzevitch
5
B. Ille
5
T. Kurca
5
M. Lethuillier
5
L. Mirabito
5
A.L. Pequegnot
5
S. Perries
5
J.D. Ruiz Alvarez
5
D. Sabes
5
L. Sgandurra
5
V. Sordini
5
M. Vander Donckt
5
P. Verdier
5
S. Viret
5
H. Xiao
5
J. Rander 1
Author
A. Rosowsky 1
Author
M. Titov 1
Author
S. Baffioni 2
Author IdHAL : stephanie-barrillon ORCID : https://orcid.org/0000-0002-7075-1673
R. Granier De Cassagnac 2
Author IdHAL : raphgrandecass arXiv : https://arxiv.org/a/rgdc ORCID : https://orcid.org/0000-0002-1275-7292
L. Mastrolorenzo 2
Author
P. Mine 2
Author
I.N. Naranjo 2
Author
M. Nguyen
Author
C. Ochando 2
Author
G. Ortona 2
Author
P. Paganini 2
Author IdHAL : pascal-paganini ORCID : https://orcid.org/0000-0001-9580-683X
M. Gouzevitch 5
Author
B. Ille 5
Author
T. Kurca 5
Author
M. Lethuillier 5
Author IdHAL : morgan-lethuillier ORCID : https://orcid.org/0000-0001-6185-2045
D. Sabes 5
Author
L. Sgandurra 5
Author
V. Sordini 5
Author IdHAL : viola-sordini ORCID : https://orcid.org/0000-0003-0885-824X
M. Vander Donckt 5
Author
1
IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (CEA Saclay
F-91191 Gif sur Yvette cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/IRFU (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
2
LLR - Laboratoire Leprince-Ringuet (Route de Saclay - 91128 Palaiseau Cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7638 (France)
3
IPHC - Institut Pluridisciplinaire Hubert Curien (23 rue Loess - BP 28 67037 Strasbourg Cedex - France)
- UNISTRA - Université de Strasbourg (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR7178 (France)
4
CC-IN2P3 - Centre de Calcul de l'IN2P3 (Domaine scientifique de La Doua
43 bd du 11 Novembre 1918
69622 Villeurbanne Cedex - France)
5
IPNL - Institut de Physique Nucléaire de Lyon (Campus LyonTech-la Doua
Bâtiment Paul DIRAC
4 Rue Enrico Fermi
69622 Villeurbanne Cedex - France)
- UCBL - Université Claude Bernard Lyon 1 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR5822 (France)
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 inverse femtobarns, collected in proton-proton collisions at sqrt(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, Upsilon, and J/psi decays into electron-positron 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.
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Journal articles
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http://hal.in2p3.fr/in2p3-01142850
Contributor : Sylvie Flores <>
Submitted on : Thursday, April 16, 2015 - 10:23:02 AM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM
Contributor : Sylvie Flores <>
Submitted on : Thursday, April 16, 2015 - 10:23:02 AM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM
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- HAL Id : in2p3-01142850, version 1
- ARXIV : 1502.02701
- DOI : 10.1088/1748-0221/10/06/P06005
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V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at sqrt(s)=8 TeV. Journal of Instrumentation, IOP Publishing, 2015, 10, pp.P06005. ⟨10.1088/1748-0221/10/06/P06005⟩. ⟨in2p3-01142850⟩
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