Jan 10 – 14, 2022
Online only
Europe/London timezone

Electron and photon energy measurement calibration with the ATLAS detector

Jan 10, 2022, 4:35 PM
1m
Online only

Online only

Poster Standard Model Precision SM Measurements

Speaker

Fabio Lucio Lucio Alves (Nanjing University (CN))

Description

An accurate calibration of the energy measurement of electron and photon is needed for many ATLAS physics analyses, such as the Higgs boson mass measurement. The calibration of the energy measurement is performed in-situ using a large statistics of Z->ee events. A prerequisite of this calibration is a good understanding of the material in front of the calorimeter and of the inter-calibration of the different calorimeter layers. The Z->ee sample is also used to measure the energy resolution. High-precision calibration of the whole Run 2 dataset corresponding to an integrated luminosity of 140 fb-1 of pp collisions at sqrt(s)=13 TeV is presented for the first time, including several methodological improvements.

Primary author

Presentation materials