Studies of the muon momentum calibration and performance of the ATLAS detector with pp collisions at ?s=13 TeV
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute for Ionics
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This paper presents the muon momentum calibration and performance studies for the ATLAS detector based on the pp collisions data sample produced at s = 13 TeV at the LHC during Run 2 and corresponding to an integrated luminosity of 139 fb - 1 . An innovative approach is used to correct for potential charge-dependent momentum biases related to the knowledge of the detector geometry, using the Z? ?+?- resonance. The muon momentum scale and resolution are measured using samples of J/ ?? ?+?- and Z? ?+?- events. A calibration procedure is defined and applied to simulated data to match the performance measured in real data. The calibration is validated using an independent sample of ? ? ?+?- events. At the Z (J/ ?) peak, the momentum scale is measured with an uncertainty at the 0.05% (0.1%) level, and the resolution is measured with an uncertainty at the 1.5% (2%) level. The charge-dependent bias is removed with a dedicated in situ correction for momenta up to 450 GeV with a precision better than 0.03 TeV - 1 . © 2023, The Author(s).
Açıklama
Anahtar Kelimeler
Calibration, Charged Particles, Germanium Compounds, Tellurium Compounds, Atlas Detectors, Calibration Procedure, Data Sample, Detector Geometry, Innovative Approaches, Integrated Luminosity, Performance, Performance Study, Potential Charge, Uncertainty, Momentum
Kaynak
European Physical Journal C
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
83
Sayı
8
