Search for Heavy Neutral Leptons in Events with Three Charged Leptons in Proton-Proton Collisions at

AM Sirunyan, A Tumasyan, W Adam, F Ambrogi… - Physical review …, 2018 - APS
… In summary, a search has been performed for a heavy neutral lepton N of Majorana nature
produced in the decays of a W boson, with subsequent prompt decays of N to Wl, where the …

Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at =13 TeV

CMS Collaboration - arXiv preprint arXiv:2403.00100, 2024 - arxiv.org
… Collaboration, based on the same pp collision data set used in this analysis, reconstruct the
… with three light leptons [46] or apply a displaced jet tagger to events with two light leptons [48]…

Search for long-lived heavy neutral leptons with displaced vertices in proton-proton collisions at =13 TeV

A Tumasyan, W Adam, JW Andrejkovic… - Journal of High Energy …, 2022 - Springer
… A search for heavy neutral leptons (HNLs), the right-handed … leptons (electrons or muons)
using proton-proton collision … one lepton emerging from the primary proton-proton collision

Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at

A Hayrapetyan, A Tumasyan, W Adam, JW Andrejkovic… - Physical Review D, 2024 - APS
… One possible explanation of the nonzero neutrino masses is the existence of heavy neutral
leptons (HNLs) with righthanded chirality, giving rise to the gauge-invariant mass terms for …

Heavy Majorana neutrinos in electron-positron and electron-proton collisions

W Buchmüller, C Greub - Nuclear Physics B, 1991 - Elsevier
… and decays of heavy Majorana neutrinos in electron-positron and electron-proton scattering,
… The production of heavy neutral leptons has already been discussed in the literature [4-71. …

The present and future status of heavy neutral leptons

AM Abdullahi, PB Alzás, B Batell… - Journal of Physics G …, 2023 - iopscience.iop.org
… of multiple Standard Model neutral fermions. When such states are heavy enough that they
cannot be produced in oscillations, they are referred to as heavy neutral leptons (HNLs). In …

Search for Long-Lived Neutral Heavy Leptons in 400-GeV/c Proton Interactions

DJ Bechis, CY Chang, TW Dombeck, RW Ellsworth… - Physical Review Letters, 1978 - APS
… a null search forneutral heavy leptons produced unaccompanied in 400-GeV/c proton-… be
the creation of L'L pairs in proton-proton collisions, followed by the rapid decay L'-L' +X', where …

Prospects for vectorlike leptons at future proton-proton colliders

PN Bhattiprolu, SP Martin - Physical Review D, 2019 - APS
… The doublet VLL model contains a new charged lepton and its neutral heavy Dirac neutrino
… VLL model, nearly independent of the proton-proton collision energy over the range from 14 …

Heavy neutral leptons at the Electron-Ion Collider

B Batell, T Ghosh, T Han, K Xie - Journal of High Energy Physics, 2023 - Springer
… In this paper, we examined the feasibility of the EIC to search for new heavy neutral
leptons produced in electron-proton collisions through charged current interactions as a …

[PDF][PDF] Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at sqrt (s)= 13 TeV

S Belforte, V Candelise, M Casarsa, K DE LEO - PHYSICAL REVIEW D, 2024 - arts.units.it
… One possible explanation of the nonzero neutrino masses is the existence of heavy neutral
leptons (HNLs) with righthanded chirality, giving rise to the gauge-invariant mass terms for …