@Article{ATLASCollaborationAad_etal2019,
author="ATLAS Collaboration (Aad, G. et al
and Alvarez Piqueras, D.
and Aparisi Pozo, J. A.
and Bailey, A. J.
and Barranco Navarro, L.
and Cabrera Urban, S.
and Castillo, F. L.
and Castillo Gimenez, V.
and Cerda Alberich, L.
and Costa, M. J.
and Escobar, C.
and Estrada Pastor, O.
and Ferrer, A.
and Fiorini, L.
and Fullana Torregrosa, E.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gonzalez de la Hoz, S.
and Gonzalvo Rodriguez, G. R.
and Higon-Rodriguez, E.
and Jimenez Pena, J.
and Lacasta, C.
and Lozano Bahilo, J. J.
and Madaffari, D.
and Mamuzic, J.
and Marti-Garcia, S.
and Melini, D.
and Mi{\~{n}}ano, M.
and Mitsou, V. A.
and Rodriguez Bosca, S.
and Rodriguez Rodriguez, D.
and Ruiz-Martinez, A.
and Salt, J.
and Santra, A.
and Soldevila, U.
and Sanchez, J.
and Valero, A.
and Valls Ferrer, J. A.
and Vos, M.",
title="Search for heavy neutral leptons in decays of W bosons produced in 13 TeV pp collisions using prompt and displaced signatures with the ATLAS detector",
journal="Journal of High Energy Physics",
year="2019",
publisher="Springer",
volume="10",
number="10",
pages="265--47pp",
optkeywords="Hadron-Hadron scattering (experiments)",
abstract="The problems of neutrino masses, matter-antimatter asymmetry, and dark matter could be successfully addressed by postulating right-handed neutrinos with Majorana masses below the electroweak scale. In this work, leptonic decays of W bosons extracted from 32.9 fb(-1) to 36.1 fb(-1) of 13 TeV proton-proton collisions at the LHC are used to search for heavy neutral leptons (HNLs) that are produced through mixing with muon or electron neutrinos. The search is conducted using the ATLAS detector in both prompt and displaced leptonic decay signatures. The prompt signature requires three leptons produced at the interaction point (either $\mu$$\mu$e or ee mu) with a veto on same-flavour opposite-charge topologies. The displaced signature comprises a prompt muon from the W boson decay and the requirement of a dilepton vertex (either $\mu$$\mu$or $\mu$e) displaced in the transverse plane by 4-300 mm from the interaction point. The search sets constraints on the HNL mixing to muon and electron neutrinos for HNL masses in the range 4.5-50 GeV.",
optnote="WOS:000520036900001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4336), last updated on Fri, 03 Apr 2020 12:20:18 +0000",
issn="1029-8479",
doi="10.1007/JHEP10(2019)265",
opturl="https://arxiv.org/abs/1905.09787",
opturl="https://doi.org/10.1007/JHEP10(2019)265",
language="English"
}