---------------------------------------------------------------------------------------------------------------
Speaker: Cesare Bini, "La Sapienza" University and INFN Roma, Italy 
--------------------------------------------------------------------------------------------------------------- 
Title: "Physics with muons at the Large Hadron Collider"
---------------------------------------------------------------------------------------------------------------
Abstract: 
The Large Hadron Collider started to deliver proton-proton collisions at a center 
of mass energy of 7 TeV in the beginning of 2010. In the first few months of data 
taking an integrated luminosity of about 40 pb-1 was collected by the experiments 
and the first physics results were published. Muon detection is one of the main 
issues of the LHC experiments, since leptons are among the most relevant probes 
for both standard model and beyond the standard model processes. 
The ATLAS experiment contains a huge muon spectrometer characterized by three 
air-core magnets instrumented with trigger and precision chambers aiming to detect 
muons with momenta from few GeV up to few TeV with momentum resolution below 
10% in the full momentum range.  
In this seminar the main features of the ATLAS muon spectrometer are presented 
together with the expected and measured performances. A selection of the first 
results obtained using the muon spectrometer is also presented and discussed. 
---------------------------------------------------------------------------------------------------------------