Anatoli Astvatsatourov (Uni Giessen)

Forward Detectors and Luminosity Measurement at ATLAS

Forward detectors at the ATLAS experiment are intended for the ATLAS luminosity measurement, soft QCD and diffractive physics. At the early LHC running stage the ALFA trackers in the Roman pots will measure elastic rates to calculate the absolute luminosity and calibrate the LUCID detector which then will measure the ATLAS luminosity. To measure central exclusive Higgs and dilepton processes the near-to-beam detectors of the AFP project are planned to be installed in-between the LHC magnets at 220m and 420m downstream the ATLAS interaction point. These detectors reach a very small proton scattering angle and designed as a tracking and time of flight systems.




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