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Author Lacuesta, V.
Source CERN Document Server
Content type Text
File Format PDF
Date Created 2012-10-27
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Modern physics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword ATLAS ♦ Inner Detector ♦ performance ♦ SCT ♦ TRT ♦ Detectors and Experimental Techniques ♦ tracking ♦ Pixel
Abstract The track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excellent performance in the early data from the LHC. However, the rapidly increas- ing number of interactions per bunch crossing introduces new challenges both in computational aspects and physics performance. The combination of both silicon and gas based detectors provides high precision impact parameter and momentum measurement of charged particles, with high efficiency and small fake rate. Vertex reconstruction is used to identify with high efficiency the hard scattering process and to measure the amount of pile-up interactions, both aspects are cru- cial for many physics analyses. The performance of track and vertex reconstruction efficiency and resolution achieved in the 2011 and 2012 data-taking period are presented.
Description Presented at: Vertex 2012, Jeju, Republic Of Korea, 16 - 21 Sep 2012
Learning Resource Type Presentation
Organization The ATLAS collaboration