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A search for prompt lepton-jets in pp collisions at root s=8 TeV with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2869
2016 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 2, 062Article in journal (Refereed) PublishedText
Abstract [en]

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.

Place, publisher, year, edition, pages
Springer, 2016. no 2, 062
Keyword [en]
Hadron-Hadron scattering
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-188565DOI: 10.1007/JHEP02(2016)062ISI: 000375272300004ScopusID: 2-s2.0-84958774687OAI: oai:DiVA.org:kth-188565DiVA: diva2:936561
Note

QC 20160614

Available from: 2016-06-14 Created: 2016-06-14 Last updated: 2016-06-15Bibliographically approved

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Jensen, BengtStrandberg, JonasSidebo, Edvin
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Particle and Astroparticle Physics
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