Artículo
Electron and photon energy calibration with the ATLAS detector using 2015-2016 LHC proton-proton collision data
Hoya, Joaquín
; Alconada Verzini, María Josefina
; Alonso, Francisco
; Dova, Maria Teresa
; Monticelli, Fernando Gabriel
; Orellana, Gonzalo Enrique
; Wahlberg, Hernan Pablo
; Abed Abud, A.; Ahmad, A.; Alderweireldt, S.; Aleksa, M.; Bielski, R.; Bortfeldt, J.; Boyd, J.; Butti, P.; Buttinger, W.; Iengo, P.; Camincher, C.; Campana, S.; Ellis, N.; Elsing, M.; Farthouat, P.; Fassnacht, P.; Heinrich, L.; Morley, A. K.; Mornacchi, G.; Meng, L.; Meng, L.; Stewart, G. A.; Stockton, M. C.
Fecha de publicación:
03/2019
Editorial:
IOP Publishing
Revista:
Journal of Instrumentation
ISSN:
1748-0221
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This paper presents the electron and photon energy calibration obtained with the ATLAS detector using about 36 fb−1 of LHC proton-proton collision data recorded at √s=13 TeV in 2015 and 2016. The different calibration steps applied to the data and the optimization of the reconstruction of electron and photon energies are discussed. The absolute energy scale is set using a large sample of Z boson decays into electron-positron pairs. The systematic uncertainty in the energy scale calibration varies between 0.03% to 0.2% in most of the detector acceptance for electrons with transverse momentum close to 45 GeV . For electrons with transverse momentum of 10 GeV the typical uncertainty is 0.3% to 0.8% and it varies between 0.25% and 1% for photons with transverse momentum around 60 GeV . Validations of the energy calibration with J/ψ → e+e− decays and radiative Z boson decays are also presented.
Palabras clave:
ATLAS
,
PHOTON
,
ELECTRON
,
ENERGY CALIBRATION
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Hoya, Joaquín; Alconada Verzini, María Josefina; Alonso, Francisco; Dova, Maria Teresa; Monticelli, Fernando Gabriel; et al.; Electron and photon energy calibration with the ATLAS detector using 2015-2016 LHC proton-proton collision data; IOP Publishing; Journal of Instrumentation; 14; P03017; 3-2019; 1-61
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