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Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s=13TeV with the ATLAS detector

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2021
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139fb-1 of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis focuses on the final state with two light leptons (electrons or muons) of different flavour and charge combinations, with at least two jets and large missing transverse momentum. No significant excess over the Standard Model expectation is observed. The results are translated into exclusion limits on heavy-lepton masses, and the observed lower limit on the mass of the type-III seesaw heavy leptons is 790 GeV at 95% confidence level.
DOI
10.1140/epjc/s10052-021-08929-9
WOS
WOS:000626601800003
Archivio
http://hdl.handle.net/11390/1208746
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85102179833
Diritti
open access
Scopus© citazioni
13
Data di acquisizione
Jun 2, 2022
Vedi dettagli
Web of Science© citazioni
17
Data di acquisizione
Mar 21, 2024
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