Triggers for displaced decays of long-lived neutral particles in the ATLAS detector

@article{Collaboration2013TriggersFD,
  title={Triggers for displaced decays of long-lived neutral particles in the ATLAS detector},
  author={Atlas Collaboration},
  journal={Journal of Instrumentation},
  year={2013},
  volume={8},
  pages={P07015 - P07015}
}
A set of three dedicated triggers designed to detect long-lived neutral particles decaying throughout the ATLAS detector to a pair of hadronic jets is described. The efficiencies of the triggers for selecting displaced decays as a function of the decay position are presented for simulated events. The effect of pile-up interactions on the trigger efficiencies and the dependence of the trigger rate on instantaneous luminosity during the 2012 data-taking period at the LHC are discussed. 

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    Proceedings of The Eighth Annual Conference on Large Hadron Collider Physics — PoS(LHCP2020)
  • 2020
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References

SHOWING 1-10 OF 21 REFERENCES

Expected performance of the ATLAS experiment - detector, trigger and physics

A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance

Search for a Light Higgs Boson Decaying to Long-Lived Weakly Interacting Particles in Proton-Proton Collisions at √s=7 TeV with the ATLAS Detector

A search for the decay of a light Higgs (120 − 140 GeV) to a pair of weakly-interacting, long-lived particles in 1.94 fb − 1 of proton-proton collisions at √ s =7 TeV recorded in 2011 by the ATLAS

Performance of the ATLAS Trigger System in 2010

Proton–proton collisions at $\sqrt{s}=7$ TeV and heavy ion collisions at $\sqrt{s_{NN}}=2.76$ TeV were produced by the LHC and recorded using the ATLAS experiment’s trigger system in 2010. The LHC is

Parton distributions for the LHC

AbstractWe present updated leading-order, next-to-leading order and next-to-next-to-leading order parton distribution functions (“MSTW 2008”) determined from global analysis of hard-scattering data

The ATLAS Experiment at the CERN Large Hadron Collider

This paper describes the ATLAS experiment as installed in i ts experimental cavern at point 1 at CERN. It also presents a brief overview of the expec ted performance of the detector.

Inelastic dark matter

Many observations suggest that much of the matter of the universe is nonbaryonic. Recently, the DAMA NaI dark matter direct detection experiment reported an annual modulation in their event rate

Possible Effects of a Hidden Valley on Supersymmetric Phenomenology

A hidden valley sector may havea profound impact on the classic phenomenology of supersymmetry. This occurs if the LSP lies in the valley sector. In addition to reducing the standard missing energy

System test of the ATLAS muon spectrometer in the H8 beam at the CERN SPS