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High Energy Physics - Experiment

arXiv:1511.05542 (hep-ex)
[Submitted on 17 Nov 2015 (v1), last revised 23 Feb 2016 (this version, v3)]

Title:A search for prompt lepton-jets in $pp$ collisions at $\sqrt{s}=$ 8 TeV with the ATLAS detector

Authors:ATLAS Collaboration
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Abstract:A search is presented for a new, light boson with a mass of about 1 GeV and decaying promptly to jets of collimated electrons and/or muons (lepton-jets). The analysis is performed with 20.3 fb$^{-1}$ of data collected by the ATLAS detector at the Large Hadron Collider in proton--proton collisions at a centre-of-mass energy of 8 TeV. Events are required to contain at least two lepton-jets. This study finds no statistically significant deviation from predictions of the Standard Model and places 95\% confidence-level upper limits on the contribution of new phenomena beyond the SM, incuding SUSY-portal and Higgs-portal models, on the number of events with lepton-jets.
Comments: 34 pages plus author list + 1 cover pages (51 pages total), 13 figures, 14 tables, submitted to JHEP All figures including auxiliary figures are available at this http URL
Subjects: High Energy Physics - Experiment (hep-ex)
Report number: CERN-PH-EP-2015-242
Cite as: arXiv:1511.05542 [hep-ex]
  (or arXiv:1511.05542v3 [hep-ex] for this version)
  https://doi.org/10.48550/arXiv.1511.05542
Related DOI: https://doi.org/10.1007/JHEP02%282016%29062

Submission history

From: Atlas Publications [view email]
[v1] Tue, 17 Nov 2015 20:44:59 UTC (1,301 KB)
[v2] Wed, 18 Nov 2015 11:02:19 UTC (1,223 KB)
[v3] Tue, 23 Feb 2016 16:29:37 UTC (1,223 KB)
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