Physics – Instrumentation and Detectors
Scientific paper
2010-10-05
Physics
Instrumentation and Detectors
3 pages, Proceedings for the Hadron Collider Physics Symposium 2010
Scientific paper
A study of the performance of the ATLAS tau and missing energy triggers with data collected in spring 2010 at {\surd}s = 7 TeV proton-proton collisions at the Large Hadron Collider (LHC) is presented. A comparison was performed between data and Monte Carlo simulations for the tau and missing transverse energy triggers. As well as a comparison between missing transverse energy trigger quantities and their offline reconstructed counterparts. Tau trigger results compare well with predictions from Monte Carlo simulations. Slight deviations are observed for tau shower shape quantities. Possible sources contributing to the discrepancy such as the simulation of the underlying event are currently being studied. The missing transverse energy reconstructed by the Event Filter is well correlated with the offline result. In addition, there is good agreement between the results obtained with collision data and Monte Carlo simulations.
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