PoS - Proceedings of Science
Volume 314 - The European Physical Society Conference on High Energy Physics (EPS-HEP2017) - Higgs and New Physics (Poster Session). Scientific Secretary: Luciano Canton.
Search for long-lived neutral particles decaying into lepton-jets with the ATLAS detector in proton-proton collision data at $\sqrt{s}$ = 13 TeV
M. Del Gaudio*  on behalf of the ATLAS Collaboration
Full text: pdf
Pre-published on: January 22, 2018
Published on: March 20, 2018
Abstract
Several models of elementary particle physics Beyond the Standard Model predict the existence of neutral particles that can also be long lived and decay in collimated jets of light leptons and hadrons (lepton-jets). The present contribution collects the results about the displaced lepton-jet search with the ATLAS experiment at the proton-proton LHC collider at $\sqrt{s}$=13 TeV during the 2015 data taking period ($3.4 \thinspace \mathrm{fb^{−1}}$). The results are interpreted in terms of the \textit{Falkowsky-Ruderman-Volansky-Zupan models} where dark photons are generated through the decay of a Higgs boson, produced via gluon-fusion. The selected events are compared with the Standard Model expectations and with Beyond Standard Model predictions.
DOI: https://doi.org/10.22323/1.314.0690
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