Search for displaced leptons in √𝒔 = 13 TeV 𝒑𝒑 collisions with the ATLAS detector

ATLAS Collaboration, Paul Newman

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Abstract

A search for charged leptons with large impact parameters using 139 fb−1 of √𝑠 = 13 TeV 𝑝𝑝 collision data from the ATLAS detector at the LHC is presented, addressing a long-standing gap in coverage of possible new physics signatures. Results are consistent with the background prediction. This search provides unique sensitivity to long-lived scalar supersymmetric lepton-partners (sleptons). For lifetimes of 0.1 ns, selectron, smuon and stau masses up to 720 GeV, 680 GeV, and 340 GeV are respectively excluded at 95% confidence level, drastically improving on the previous best limits from LEP.
Original languageEnglish
Article number051802
Pages (from-to)1-21
Number of pages21
JournalPhysical Review Letters
Volume127
Issue number5
Early online date27 Jul 2021
DOIs
Publication statusPublished - 30 Jul 2021

Bibliographical note



29 pages in total, author list starting page 14, 2 figures, 1 table, submitted to PRL. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2018-14

Keywords

  • hep-ex

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