Search for long-lived neutral particles in pp collisions at root s=13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter
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AbstractThis 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 10.8 fb-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.
All Author(s) ListATLAS Collaboration
Journal nameEuropean Physical Journal C: Particles and Fields
Year2019
Month6
Day7
Volume Number79
Issue Number6
PublisherSpringer Verlag (Germany): SCOAP3 / SpringerOpen (part of Springer Nature)
Article number481
ISSN1434-6044
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesPhysics, Particles & Fields;Physics

Last updated on 2021-06-05 at 01:54