@article{e2f8a3ad801640b7b5fe8ce3571881d2,
title = "Search for Heavy Neutral Leptons in Decays of W Bosons Using a Dilepton Displaced Vertex in Formula Presented Collisions with the ATLAS Detector",
abstract = "A search for a long-lived, heavy neutral lepton ( N ) in 139 fb - 1 of s = 13 TeV p p collision data collected by the ATLAS detector at the Large Hadron Collider is reported. The N is produced via W → N μ or W → N e 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 < m N < 15 GeV . For the first time, limits are given for both single-flavor and multiflavor mixing scenarios motivated by neutrino flavor oscillation results for both the normal and inverted neutrino-mass hierarchies.",
author = "{ATLAS Collaboration} and Filmer, {E. K.} and P. Jackson and Kong, {A. X.Y.} and H. Potti and Ruggeri, {T. A.} and Sharma, {A. S.} and Ting, {E. X.L.} and White, {M. J.} and Gingrich, {D. M.} and Lindon, {J. H.} and N. Nishu and Pinfold, {J. L.} and O. Cakir and Yildiz, {H. Duran} and S. Kuday and {Turk Cakir}, I. and S. Sultansoy and {Adam Bourdarios}, C. and N. Berger and F. Costanza and M. Delmastro and {Di Ciaccio}, L. and L. Franco and C. Goy and T. Guillemin and T. Hryn{\textquoteright}ova and S. J{\'e}z{\'e}quel and I. Koletsou and J. Lev{\^e}que and Little, {J. D.} and {Lorenzo Martinez}, N. and G. Poddar and E. Rossi and {Sanchez Pineda}, A. and E. Sauvan and L. Selem and G. Bernardi and M. Bomben and R. Bouquet and G. Marchiori and Bhopatkar, {V. S.} and S. Chekanov and S. Darmora and Hopkins, {W. H.} and E. Kourlitis and T. LeCompte and J. Love and J. Metcalfe and Connell, {S. H.} and N. Govender",
note = "Publisher Copyright: {\textcopyright} 2023 CERN, for the ATLAS Collaboration.",
year = "2023",
month = aug,
day = "11",
doi = "10.1103/PhysRevLett.131.061803",
language = "English",
volume = "131",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "6",
}