Search for Heavy Long-Lived Multi-Charged Particles in pp Collisions at √s̅ = 8 TeV Using the ATLAS Detector
AbouZeid, O. S.
Izen, Joseph M.
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A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2012 at √s = 8 TeV from pp collisions corresponding to an integrated luminosity of 20.3 fb⁻¹ are examined. Particles producing anomalously high ionisation, consistent with long-lived massive particles with electric charges from |q|=2e to |q|=6e are searched for. No signal candidate events are observed, and 95 % confidence level cross-section upper limits are interpreted as lower mass limits for a Drell–Yan production model. The mass limits range between 660 and 785 GeV. © 2015, CERN for the benefit of the ATLAS collaboration.