Please use this identifier to cite or link to this item: https://hdl.handle.net/1783.1/97797

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

Bibliographic Details
Author The ATLAS Collaboration
Lie, Ki View this author's profile
Ng, T. Y.
Prokofiev, Kirill View this author's profile
Issue Date 2019
Source European Physical Journal C, v. 79, (6), June 2019, article number 481
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. © 2019, CERN for the benefit of the ATLAS collaboration.
DOI 10.1140/epjc/s10052-019-6962-6
ISSN 1434-6044
1434-6052
Language English
Type Article
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