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A Search for Prompt Lepton-Jets in pp Collisions at √s = 7 TeV with the ATLAS Detector

Author(s)
Taylor, Frank E.
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DownloadAad-2013-A search for prompt.pdf (1.260Mb)
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Abstract
We present a search for a light (<2 GeV) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, denoted “lepton-jets”. The analysis uses 5 fb[superscript −1] of √s = 7 TeV proton–proton collision data recorded by the ATLAS detector at the Large Hadron Collider to search for the following signatures: single lepton-jets with at least four muons; pairs of lepton-jets, each with two or more muons; and pairs of lepton-jets with two or more electrons. This study finds no statistically significant deviation from the Standard Model prediction and places 95% confidence-level exclusion limits on the production cross section times branching ratio of light bosons for several parameter sets of a Hidden Valley model.
Date issued
2013-01
URI
http://hdl.handle.net/1721.1/91900
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physics Letters B
Publisher
Elsevier
Citation
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A.A. Abdelalim, O. Abdinov, et al. “A Search for Prompt Lepton-Jets in pp Collisions at √s = 7 TeV with the ATLAS Detector.” Physics Letters B 719, no. 4–5 (February 2013): 299–317. © 2013 CERN
Version: Final published version
ISSN
03702693

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