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Search for long-lived neutral particles decaying into lepton jets in proton-proton collisions at √s = 8 TeV with the ATLAS detector

Author(s)
Taylor, Frank E.
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Abstract
Several models of physics beyond the Standard Model predict neutral particles that decay into final states consisting of collimated jets of light leptons and hadrons (so-called “lepton jets”). These particles can also be long-lived with decay length comparable to, or even larger than, the LHC detectors’ linear dimensions. This paper presents the results of a search for lepton jets in proton-proton collisions at the centre-of-mass energy of √s = 8 TeV in a sample of 20.3 fb[superscript −1] collected during 2012 with the ATLAS detector at the LHC. Limits on models predicting Higgs boson decays to neutral long-lived lepton jets are derived as a function of the particle’s proper decay length.
Date issued
2014-11
URI
http://hdl.handle.net/1721.1/92535
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Search for Long-Lived Neutral Particles Decaying into Lepton Jets in Proton-Proton Collisions at √s = 8 TeV with the ATLAS Detector.” J. High Energ. Phys. 2014, no. 11 (November 2014).
Version: Final published version
ISSN
1029-8479
1126-6708

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