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

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

ATLAS

Collaboration

Apr 16, 2015

17 pages

Published in:

Eur.Phys.J.C 75 (2015) 362

Published: Aug 8, 2015

e-Print:

1504.04188 [hep-ex]

DOI:

10.1140/epjc/s10052-015-3534-2

PDG: MASS LIMITS for Long-Lived Charged Heavy Fermions

Report number:

CERN-PH-EP-2015-049

Experiments:

CERN-LHC-ATLAS

View in:

reference search76 citations

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Abstract: (Springer)

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.

Note:

17 pages plus author list + cover pages (35 pages total), 8 figures, 4 tables, submitted to Eur. Phys. J. C, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2013-20/

p p: scattering
p p: colliding beams
new particle: search for
charged particle: long-lived
charged particle: massive
cross section: upper limit
model: production
charge: electric
ionization: high
ionization: energy loss

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