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Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector

The, ATLAS collaboration
•
Aad, G.
•
Abbott, B.
altro
Zwalinski, L.
2015
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at (Formula presented.) = 8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb−1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114–176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100–468 GeV are excluded. © 2015, The Author(s).
DOI
10.1007/JHEP09(2015)108
WOS
WOS:000363539700001
Archivio
http://hdl.handle.net/11390/1097415
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84942309326
http://link.springer.com/article/10.1007%2FJHEP09%282015%29108
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  • Hadron-Hadron Scatter...

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Data di acquisizione
Jun 2, 2022
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