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Volume 350 - 7th Annual Conference on Large Hadron Collider Physics (LHCP2019) - Posters
Search for dark-photons decaying to lepton-jets with the ATLAS detector at LHC
C.D. Sebastiani* on behalf of the ATLAS collaboration
*corresponding author
Full text: pdf
Pre-published on: 2019 August 28
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Several new physics models predict the existence of neutral particles with macroscopic life-times that decay to pairs of leptons and light hadrons with a jet-like structure (lepton-jets). These particles, decaying outside of the interaction region, will give rise to striking signatures in the detectors at the LHC. These can be detected through numerous unconventional signatures: long time-of-flight, late calorimeter energy deposits or displaced vertices. The most recent ATLAS results based on $36~\mathrm{fb}^{-1}$ of data collected in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ recorded in 2015-2016 are presented. Prospects for the search for these particles with the ATLAS detector upgrade at HL-LHC are also given.
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