Abstract
In order to maximize the physics potential of the ATLAS experiment during LHC's Run 2, the reconstruction software has been updated. Flat computing budgets required a factor of three improved execution time, while the new xAOD data format forced changes in the reconstruction algorithms. Physics performance was also made better. This paper presents an overview of the improvements made to the reconstruction software during the long shutdown of the LHC.
Highlights
Run 2 of the LHC will be a challenging software environment for the ATLAS experiment [1]
This paper presents the reconstruction software improvements for Run 2, both in computing and in physics performance
ConclusionPhysics performance has improved, with more pile-up tolerant tracking and vertexing, better calibrated electrons and photons, more precisely measured muons, more user-friendly jets and ETmiss, and better performing flavor tagging and tau reconstruction
Summary
This content has been downloaded from IOPscience. Please scroll down to see the full text. Ser. 664 072034 (http://iopscience.iop.org/1742-6596/664/7/072034) View the table of contents for this issue, or go to the journal homepage for more. Download details: IP Address: 137.138.124.206 This content was downloaded on 24/02/2016 at 13:16 Please note that terms and conditions apply. 21st International Conference on Computing in High Energy and Nuclear Physics (CHEP2015) IOP Publishing. Journal of Physics: Conference Series 664 (2015) 072034 doi:10.1088/1742-6596/664/7/072034
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