Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data

Agni Bethani; Alexander Bitadze; Jonathan Crane; Cinzia Da Via; Nicholas Dann; Sam Dysch; Alessandra Forti; Emily Hanson; James Howarth; David Lack; Ivan Lopez Paz; Jiri Masik; Stephen Menary; Francisca Munoz Sanchez; Alexander Oh; Joleen Pater; Yvonne Peters; Rebecca Pickles; Andrew Pilkington; Darren Price; Yang Qin; Jacob Rawling; Nicolas Scharmberg; Savanna Shaw; Terence Wyatt

doi:10.1088/1748-0221/14/03/P03017

Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data

Agni Bethani, Alexander Bitadze, Jonathan Crane, Cinzia Da Via, Nicholas Dann, Sam Dysch, Alessandra Forti, Emily Hanson, James Howarth, David Lack, Ivan Lopez Paz, Jiri Masik, Stephen Menary, Francisca Munoz Sanchez, Alexander Oh, Joleen Pater, Yvonne Peters, Rebecca Pickles, Andrew Pilkington, Darren PriceYang Qin, Jacob Rawling, Nicolas Scharmberg, Savanna Shaw, Terence Wyatt

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Abstract

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.

Original language	English
Journal	Journal of Instrumentation
Early online date	18 Mar 2019
DOIs	https://doi.org/10.1088/1748-0221/14/03/P03017
Publication status	Published - 2019

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Bethani, A., Bitadze, A., Crane, J., Da Via, C., Dann, N., Dysch, S., Forti, A., Hanson, E., Howarth, J., Lack, D., Lopez Paz, I., Masik, J., Menary, S., Munoz Sanchez, F., Oh, A., Pater, J., Peters, Y., Pickles, R., Pilkington, A., ... Wyatt, T. (2019). Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data. Journal of Instrumentation. https://doi.org/10.1088/1748-0221/14/03/P03017

@article{e0ffa121403b4f8583b40e4f00d3b2e3,

title = "Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data",

abstract = "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.",

author = "Agni Bethani and Alexander Bitadze and Jonathan Crane and {Da Via}, Cinzia and Nicholas Dann and Sam Dysch and Alessandra Forti and Emily Hanson and James Howarth and David Lack and {Lopez Paz}, Ivan and Jiri Masik and Stephen Menary and {Munoz Sanchez}, Francisca and Alexander Oh and Joleen Pater and Yvonne Peters and Rebecca Pickles and Andrew Pilkington and Darren Price and Yang Qin and Jacob Rawling and Nicolas Scharmberg and Savanna Shaw and Terence Wyatt",

year = "2019",

doi = "10.1088/1748-0221/14/03/P03017",

language = "English",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "IOP Publishing Ltd",

}

Bethani, A, Bitadze, A, Crane, J, Da Via, C, Dann, N, Dysch, S, Forti, A, Hanson, E, Howarth, J, Lack, D, Lopez Paz, I, Masik, J, Menary, S, Munoz Sanchez, F , Oh, A, Pater, J, Peters, Y, Pickles, R, Pilkington, A , Price, D, Qin, Y, Rawling, J, Scharmberg, N, Shaw, S & Wyatt, T 2019, 'Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data', Journal of Instrumentation. https://doi.org/10.1088/1748-0221/14/03/P03017

TY - JOUR

T1 - Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data

AU - Bethani, Agni

AU - Bitadze, Alexander

AU - Crane, Jonathan

AU - Da Via, Cinzia

AU - Dann, Nicholas

AU - Dysch, Sam

AU - Forti, Alessandra

AU - Hanson, Emily

AU - Howarth, James

AU - Lack, David

AU - Lopez Paz, Ivan

AU - Masik, Jiri

AU - Menary, Stephen

AU - Munoz Sanchez, Francisca

AU - Oh, Alexander

AU - Pater, Joleen

AU - Peters, Yvonne

AU - Pickles, Rebecca

AU - Pilkington, Andrew

AU - Price, Darren

AU - Qin, Yang

AU - Rawling, Jacob

AU - Scharmberg, Nicolas

AU - Shaw, Savanna

AU - Wyatt, Terence

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

U2 - 10.1088/1748-0221/14/03/P03017

DO - 10.1088/1748-0221/14/03/P03017

M3 - Article

SN - 1748-0221

JO - Journal of Instrumentation

JF - Journal of Instrumentation

ER -

Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data

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