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Search for long-lived neutral particles in pp collisions at √s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

ContributorsATLAS Collaboration
Collection
  • Open Access - SCOAP3
Publication date2019
Abstract

This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8fb-1 or 33.0fb-1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles.

Citation (ISO format)
ATLAS Collaboration. Search for long-lived neutral particles in pp collisions at √s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter. In: The European Physical Journal. C, Particles and Fields, 2019, vol. 79, n° 6, p. 481. doi: 10.1140/epjc/s10052-019-6962-6
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Article (Published version)
Identifiers
ISSN of the journal1434-6044
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Creation07/02/2019 5:16:08 PM
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