The reconstruction and identification of muons has been a fundamental component of some among the most important ATLAS physics results during Run-1 and Run-2 of LHC.
Examples of such results are the discovery of the Higgs boson in 2012 and the measurements of its properties, like its mass, couplings, and quantum numbers.
Also many precision measurements of Standard Model processes heavy rely on the muon reconstruction performance and calibration, as well as searches of new physics processes.
The Rome ATLAS group had a crucial role in the project, construction and operation of the muon spectrometer, as well as on the measurement and optimization of its performances for physics analyses during Run-1 and now during Run-2.
With the upgrades ongoing in view of the Run-3, and of High-Lumi LHC, the muon reconstruction and identification, and the methods to obtain optimal reconstruction performance will also need to be upgraded. On these aspects the Rome group is now also significantly involved.
