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

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.
Type de document :
Article dans une revue
Journal of High Energy Physics, Springer, 2016, 02, pp.062. 〈10.1007/JHEP02(2016)062 〉

http://hal.in2p3.fr/in2p3-01230188
Contributeur : Emmanuelle Vernay <>
Soumis le : mercredi 18 novembre 2015 - 08:02:08
Dernière modification le : mardi 13 février 2018 - 13:28:06

Citation

G. Aad, S. Albrand, J. Brown, J. Collot, S. Crépé-Renaudin, et al.. A search for prompt lepton-jets in $pp$ collisions at $\sqrt{s}=$ 8 TeV with the ATLAS detector. Journal of High Energy Physics, Springer, 2016, 02, pp.062. 〈10.1007/JHEP02(2016)062 〉. 〈in2p3-01230188〉

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