The understanding of the reconstruction of photons will be one of the key issues at the start-up of data-taking with the ATLAS experiment at the LHC in 2009. Large statistics of photons produced in association with jets are expected over a wide range of ET , from 20 GeV to several hundred GeV. These will be used as an important in situ calibration tool for the jet energy scale. The energy measurement of unconverted photons is based on the electromagnetic calorimetry over the full relevant energy range (10 GeV to a few TeV). The electromagnetic calorimeter cluster algorithm starting from electronically calibrated calorimeter cells will be described. Local position and energy variations are corrected for. A refined calibration procedure, devel...
The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are descri...
AbstractDirect photons are a powerful tool to study heavy ion collisions. Their production rates pro...
A precise calibration of the jet energy in the ATLAS experiment at LHC is fundamental for many physi...
The understanding of the reconstruction of photons will be one of the key issues at the start-up of ...
The understanding of the reconstruction of photons will be one of the key issues at the start-up of ...
An intense commissioning activity of the ATLAS detector has preceded the LHC beam start up. Both cos...
Electrons and photons will be produced in many physics channels of prime interest at the Large Hadro...
PoS(2008LHC)040 - On behalf of the ATLAS CollaborationInternational audienceThe status of the recons...
The efficiency of the photon identification criteria in the ATLAS detector is measured using 36.1 fb...
The calibration of electromagnetic clusters is one of the key issues of ATLAS (and the LHC) in 2007....
The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are descri...
AbstractDirect photons are a powerful tool to study heavy ion collisions. Their production rates pro...
A precise calibration of the jet energy in the ATLAS experiment at LHC is fundamental for many physi...
The understanding of the reconstruction of photons will be one of the key issues at the start-up of ...
The understanding of the reconstruction of photons will be one of the key issues at the start-up of ...
An intense commissioning activity of the ATLAS detector has preceded the LHC beam start up. Both cos...
Electrons and photons will be produced in many physics channels of prime interest at the Large Hadro...
PoS(2008LHC)040 - On behalf of the ATLAS CollaborationInternational audienceThe status of the recons...
The efficiency of the photon identification criteria in the ATLAS detector is measured using 36.1 fb...
The calibration of electromagnetic clusters is one of the key issues of ATLAS (and the LHC) in 2007....
The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are descri...
AbstractDirect photons are a powerful tool to study heavy ion collisions. Their production rates pro...
A precise calibration of the jet energy in the ATLAS experiment at LHC is fundamental for many physi...