Search for Heavy Neutral Leptons in Decays of W Bosons Using a Dilepton Displaced Vertex in Formula Presented Collisions with the ATLAS Detector

doi:10.1103/PhysRevLett.131.061803

Search for Heavy Neutral Leptons in Decays of W Bosons Using a Dilepton Displaced Vertex in Formula Presented Collisions with the ATLAS Detector

Ben-Gurion University of the Negev, Tel Aviv University, Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

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.

Original language	American English
Article number	061803
Journal	Physical Review Letters
Volume	131
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.131.061803
State	Published - 11 Aug 2023

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.131.061803

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@article{2ac0ee2687614a4795b75483d9ef3cef,

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 = "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 Citron, \{Z. H.\} and B. Parida and \{Salvador Salas\}, A. and C. Appelt and O. Kuprash and \{Alconada Verzini\}, \{M. J.\} and H. Abramowicz and L. Barak and U. Barron and G. Bella and Y. Benhammou and H. Cohen and E. Etzion and S. Galantzan and G. Koren and Lutz, \{M. S.\} and R. Nayak and \{Pascual Dominguez\}, L. and D. Reikher and A. Soffer and Tamir, \{N. M.\} and D. Vannicola and S. Istin and Y. Afik and Seabra, \{L. F.Oleiro\} and H. Abreu and E. Kajomovitz and Y. Rozen and S. Tarem",

note = "Publisher Copyright: {\textcopyright} 2023 CERN, for the ATLAS Collaboration.",

year = "2023",

month = aug,

day = "11",

doi = "10.1103/PhysRevLett.131.061803",

language = "American English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Institute of Physics",

number = "6",

}

TY - JOUR

T1 - Search for Heavy Neutral Leptons in Decays of W Bosons Using a Dilepton Displaced Vertex in Formula Presented Collisions with the ATLAS Detector

AU - Filmer, E. K.

AU - Jackson, P.

AU - Kong, A. X.Y.

AU - Potti, H.

AU - Ruggeri, T. A.

AU - Sharma, A. S.

AU - Ting, E. X.L.

AU - White, M. J.

AU - Gingrich, D. M.

AU - Lindon, J. H.

AU - Nishu, N.

AU - Pinfold, J. L.

AU - Cakir, O.

AU - Yildiz, H. Duran

AU - Kuday, S.

AU - Turk Cakir, I.

AU - Sultansoy, S.

AU - Adam Bourdarios, C.

AU - Berger, N.

AU - Costanza, F.

AU - Delmastro, M.

AU - Di Ciaccio, L.

AU - Franco, L.

AU - Goy, C.

AU - Guillemin, T.

AU - Hryn’ova, T.

AU - Jézéquel, S.

AU - Koletsou, I.

AU - Levêque, J.

AU - Little, J. D.

AU - Lorenzo Martinez, N.

AU - Poddar, G.

AU - Rossi, E.

AU - Sanchez Pineda, A.

AU - Sauvan, E.

AU - Selem, L.

AU - Bernardi, G.

AU - Bomben, M.

AU - Bouquet, R.

AU - Marchiori, G.

AU - Bhopatkar, V. S.

AU - Chekanov, S.

AU - Darmora, S.

AU - Hopkins, W. H.

AU - Kourlitis, E.

AU - LeCompte, T.

AU - Love, J.

AU - Metcalfe, J.

AU - Citron, Z. H.

AU - Parida, B.

AU - Salvador Salas, A.

AU - Appelt, C.

AU - Kuprash, O.

AU - Alconada Verzini, M. J.

AU - Abramowicz, H.

AU - Barak, L.

AU - Barron, U.

AU - Bella, G.

AU - Benhammou, Y.

AU - Cohen, H.

AU - Etzion, E.

AU - Galantzan, S.

AU - Koren, G.

AU - Lutz, M. S.

AU - Nayak, R.

AU - Pascual Dominguez, L.

AU - Reikher, D.

AU - Soffer, A.

AU - Tamir, N. M.

AU - Vannicola, D.

AU - Istin, S.

AU - Afik, Y.

AU - Seabra, L. F.Oleiro

AU - Abreu, H.

AU - Kajomovitz, E.

AU - Rozen, Y.

AU - Tarem, S.

PY - 2023/8/11

Y1 - 2023/8/11

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85173626178&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.131.061803

DO - 10.1103/PhysRevLett.131.061803

M3 - Article

C2 - 37625051

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 061803

ER -

Search for Heavy Neutral Leptons in Decays of W Bosons Using a Dilepton Displaced Vertex in Formula Presented Collisions with the ATLAS Detector

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