Artículo
Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data
Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Sacerdoti, Sabrina
; Reisin, Hernan Diego
; Alconada Verzini, María Josefina
; Alonso, Francisco
; Anduaga, Xabier Sebastian
; Arduh, Francisco Anuar
; Dova, Maria Teresa
; Monticelli, Fernando Gabriel
; Wahlberg, Hernan Pablo
; Zhukov, K.; Zibell, A.; Zieminska, D.; Zimine, N. I.; Zimmermann, C.; Zimmermann, R.; Zimmermann, S.; Zimmermann, S.; Ziolkowski, M.; Zobernig, G.; Zoccoli, A.; Nedden, M. zur; Zurzolo, G.; Zutshi, V.; Zwalinski, L.; The ATLAS Collaboration
Fecha de publicación:
11/2014
Editorial:
Springer
Revista:
European Physical Journal C: Particles and Fields
ISSN:
1434-6044
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This paper presents the performance of the ATLAS muon reconstruction during the LHC run with pp collisions at s√=7 ?8 TeV in 2011?2012, focusing mainly on data collected in 2012. Measurements of the reconstruction efficiency and of the momentum scale and resolution, based on large reference samples of J/ψ→μμ , Z→μμ and Υ→μμ decays, are presented and compared to Monte Carlo simulations. Corrections to the simulation, to be used in physics analysis, are provided. Over most of the covered phase space (muon |η|<2.7 and 5≲pT≲100 GeV) the efficiency is above 99% and is measured with per-mille precision. The momentum resolution ranges from 1.7% at central rapidity and for transverse momentum pT≃10 GeV, to 4% at large rapidity and pT≃100 GeV. The momentum scale is known with an uncertainty of 0.05% to 0.2% depending on rapidity. A method for the recovery of final state radiation from the muons is also presented.
Palabras clave:
ATLAS
,
Performance
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; et al.; Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data; Springer; European Physical Journal C: Particles and Fields; 74; 3130; 11-2014; 1-34
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