CERN Accelerating science

ATLAS Note
Report number	ATL-INDET-PROC-2011-035
Title	Particle Identification with the ATLAS Transition Radiation Tracker
Author(s)	Hines, E (Pennsylvania U.)
Corporate Author(s)	The ATLAS collaboration
Publication	2011
Imprint	21 Nov 2011
Number of pages	5
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Abstract	The ATLAS Transition Radiation Tracker (TRT) is the outermost of the three sub-systems of the ATLAS Inner Detector at the Large Hadron Collider at CERN. In addition to its tracking capabilities, the TRT provides particle identification (PID) ability through the detection of transition radiation X-ray photons. The latter functionality provides substantial discriminating power between electrons and hadrons in the momentum range from 1 to 200 GeV. These proceedings present the commissioning of TRT PID during early 2010 7 TeV data taking. Performance in 2010 and 2011 demonstrating the TRT's ability to identify electrons, complementary to calorimeter based identification methods, will also be shown.
Copyright/License	Preprint: (License: CC-BY-4.0)

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