Identification and Energy Calibration of Hadronically Decaying Tau Leptons with the ATLAS Experiment in pp Collisions at √s̅ = 8 TeV

DSpace/Manakin Repository

Identification and Energy Calibration of Hadronically Decaying Tau Leptons with the ATLAS Experiment in pp Collisions at √s̅ = 8 TeV

Show full item record

Title: Identification and Energy Calibration of Hadronically Decaying Tau Leptons with the ATLAS Experiment in pp Collisions at √s̅ = 8 TeV
Author(s):
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdel Khalek, S.;
Abdinov, O.;
Aben, R.;
Abi, B.;
Izen, Joseph M. (UT Dallas);
Leyton, Michael (UT Dallas)|Lou, Xinchou(UT Dallas);
Meirose, Bernhard (UT Dallas);
Namasivayam, Harisankar (UT Dallas);
Reeves, Kendall (UT Dallas);
ATLAS Collaboration
Format: Article
Item Type: Text
Keywords: Show Keywords
Abstract: This paper describes the trigger and offline reconstruction, identification and energy calibration algorithms for hadronic decays of tau leptons employed for the data collected from pp collisions in 2012 with the ATLAS detector at the LHC center-of-mass energy √s̅ = 8 TeV. The performance of these algorithms is measured in most cases with Z decays to tau leptons using the full 2012 dataset, corresponding to an integrated luminosity of 20.3 fb⁻¹ An uncertainty on the offline reconstructed tau energy scale of 2-4%, depending on transverse energy and pseudorapidity, is achieved using two independent methods. The offline tau identification efficiency is measured with a precision of 2.5% for hadronically decaying tau leptons with one associated track, and of 4% for the case of three associated tracks, inclusive in pseudorapidity and for a visible transverse energy greater than 20 GeV. For hadronic tau lepton decays selected by offline algorithms, the tau trigger identification efficiency is measured with a precision of 2-8%, depending on the transverse energy. The performance of the tau algorithms, both offline and at the trigger level, is found to be stable with respect to the number of concurrent proton-proton interactions and has supported a variety of physics results using hadronically decaying tau leptons at ATLAS.
Publisher: Springer
ISSN: 1434-6044
Persistent Link: http://hdl.handle.net/10735.1/4642
http://dx.doi.org/10.1140/epjc/s10052-015-3500-z
Bibliographic Citation: Aad, G., B. Abbott, J. Abdallah, et al. 2015. "Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s̅ = 8 TeV." European Physical Journal C 2015(5) doi:10.1140/epjc/s10052-015-3500-z
Terms of Use: CC-BY 4.0 (Attribution) License
©2015 CERN, for the ATLAS Collaboration

Files in this item

Files Size Format View
NSM-2307-272834.73.pdf 2.984Mb PDF View/Open Article

This item appears in the following Collection(s)


Show full item record

CC-BY 4.0 (Attribution) License Except where otherwise noted, this item's license is described as CC-BY 4.0 (Attribution) License