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Search for heavy long-lived multi-charged particles in pp collisions at $\sqrt{s}=\;8$ TeV using the ATLAS detector

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Original languageEnglish
Article numberAad:2015oga
Pages (from-to)362
JournalEuropean Physical Journal C: Particles and Fields
Publication statusPublished - 8 Aug 2015


A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2012 at $\sqrt{s}$=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.

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