Search for long-lived neutral particles decaying into lepton-jets in 20.3 fb−1 proton-proton collisions at √s = 8 TeV with the ATLAS detector
Universita’ della Calabria and INFN Cosenza, Rende, Italy
a e-mail: email@example.com
Published online: 4 November 2016
Several models of elementary particle physics beyond the Standard Model, predict the existence of neutral particles that can decay in jets of leptons and light hadrons (lepton-jets). The present contribution collects the results about the lepton-jet search with the ATLAS experiment at the proton-proton LHC collider at √s = 8 TeV during the entire 2012 data taking (20 fb−1). No excess of events have been observed over the expected background and the exclusion limits for two different models, that predict the Higgs boson to decay in lepton-jets, have been computed. A new lepton-jet search is underway for the new LHC era at (√s = 13 TeV).
© The Authors, published by EDP Sciences, 2016
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