Studies of the muon momentum calibration and performance of the ATLAS detector with pp collisions at √s = 13 TeV

ATLAS Publications, T.M. Carter, R.Y. Gonzalez Andana, A. Hasib, V.A. Parrish, E.A. Pender, T. Qiu, E.P. Takeva, N. Themistokleous, E.M. Villhauer, E. Zaid

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

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 detec-
tor geometry, using the Z → μ+μ− resonance. The muon momentum scale and resolution are measured using samples of J/ψ → μ+μ− and Z → μ+μ− 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 ϒ → μ+μ− events. At the Z (J/ψ) 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 .
Original languageEnglish
Article number686
Pages (from-to)1-37
Number of pages37
JournalThe European Physical Journal C
Volume83
Issue number8
DOIs
Publication statusPublished - 1 Aug 2023

Fingerprint

Dive into the research topics of 'Studies of the muon momentum calibration and performance of the ATLAS detector with pp collisions at √s = 13 TeV'. Together they form a unique fingerprint.

Cite this