Lepton and photon reconstruction and identification performances in ATLAS and CMS in Run II

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Abstract

Leptons and photons are not only important for precision physics analyses (e.g. H → yy), but also are very important handles for a vast number of beyond the Standard Model (BSM) searches. It is important to have a good understanding about their reconstruction, identification and energy scale and resolution. This proceeding summarises the lepton and photon performance results from the two multi-purpose experiments at the Large Hadron Collider (LHC), viz., ATLAS and CMS, using the full Run 2 dataset. In addition, CMS has recently performed the re-calibration of the full Run 2 dataset (referred to as the "Legacy ReReco") with improved detector description in the simulation and updated calibration, alignment etc., in data. Results on electron and photon performances from the Legacy ReReco dataset are shown for the year 2017 and compared with the last available dataset of 2017 (referred to as the "End Of the Year (EOY) ReReco"). In this report, only the results are presented. Detailed description can be found in the references therein.

Original languageEnglish (US)
Article number046
JournalProceedings of Science
Volume382
StatePublished - 2020
Event8th Annual Conference on Large Hadron Collider Physics, LHCP 2020 - Virtual, Paris, France
Duration: May 25 2020May 30 2020

Bibliographical note

Funding Information:
The author would like to thank the US Department of Energy Office of Science (HEP) for their support, and to thank CERN and all the funding agencies that have made this work possible.

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

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