Abstract
A search for a long-lived, heavy neutral lepton (N) in 139 fb^{-1} of sqrt[s]=13 TeV pp collision data collected by the ATLAS detector at the Large Hadron Collider is reported. The N is produced via W→Nμ or W→Ne and decays into two charged leptons and a neutrino, forming a displaced vertex. The N mass is used to discriminate between signal and background. No signal is observed, and limits are set on the squared mixing parameters of the N with the left-handed neutrino states for the N mass range 3 GeV
Original language | English |
---|---|
Article number | 061803 |
Journal | Physical Review Letters |
Volume | 131 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2023 |
Subject classification (UKÄ)
- Subatomic Physics
Free keywords
- article
- boson
- flavor
- hadron
- left handedness
- lepton
- neutrino
- oscillation