28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

CMS electron and photon performance at Run 2 and prospects for Run 3

29 Jul 2020, 17:50
15m
virtual conference

virtual conference

Talk 12. Operation, Performance and Upgrade of Present Detectors Operation, Performance and Upgrade of Present Detectors

Speaker

Livia Soffi (Univ. di Roma I e Sez. dell'INFN)

Description

The Compact Muon Solenoid (CMS) detector is one of the two multi-purpose experiments at the Large Hadron Collider (LHC) and has a broad physics program. Many aspects of this program depend on our ability to trigger, reconstruction and identify events with final state electrons, positrons, and photons with the CMS detector with excellent efficiency and high resolution.

In this talk we present the full process of electron and photon reconstruction in CMS, starting from tracker hits and energy deposits in the electromagnetic calorimeter, the method to achieve the ultimate precision in Run II energy measurements, the trigger and identification strategies (based both on cut based approach and on multivariate analysis) to discriminate prompt electrons and photons from background, and the methods to estimate the associated systematic uncertainties. Finally the performance on benchmark channels will be shown together with prospects for Run 3.

Primary author

Livia Soffi (Univ. di Roma I e Sez. dell'INFN)

Presentation Materials