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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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arxiv 1504.04188 v2 pith:SWRI2ZT4 submitted 2015-04-16 hep-ex

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

classification hep-ex
keywords particleslimitslong-livedatlascollisionsdetectorheavymass
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 $\sqrt{s}$=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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    hep-ex 2026-01 accept novelty 7.0

    A triggerless CMS dataset yields first low-speed heavy charged particle limits, excluding fiducial cross sections down to 3.5 fb.