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.

Triggers for displaced decays of long-lived neutral particles in the ATLAS detector / Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S.a., Abdelalim, A.a., Abdinov, O., Aben, R., Abi, B., Abolins, M., Abouzeid, O.s., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B.s., Adamczyk, L., Adams, D.l., Addy, T.n., Adelman, J., Adomeit, S., et al.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 8:(2013). [10.1088/1748-0221/8/07/P07015]

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

Gonella L;
2013-01-01

Abstract

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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/3090208
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