Search for heavy neutral leptons in decays of W bosons using a dilepton displaced vertex in √s =13 TeV pp collisions with the ATLAS detector

Aad, G.; Abbott, B.; Abbott, D.C.; Chudoba, Jiří; Hejbal, Jiří; Hladík, Ondřej; Jačka, Petr; Kepka, Oldřich; Kroll, Jiří; Kupčo, Alexander; Latoňová, Věra; Lokajíček, Miloš; Lysák, Roman; Marčišovský, Michal; Mikeštíková, Marcela; Němeček, Stanislav; Penc, Ondřej; Šícho, Petr; Staroba, Pavel; Svatoš, Michal; Taševský, Marek

doi:https://dx.doi.org/10.1103/PhysRevLett.131.061803

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Search for heavy neutral leptons in decays of W bosons using a dilepton displaced vertex in √s =13 TeV pp collisions with the ATLAS detector

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SYSNO ASEP	0578352
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Search for heavy neutral leptons in decays of W bosons using a dilepton displaced vertex in √s =13 TeV pp collisions with the ATLAS detector
Author(s)	Aad, G. (FR) Abbott, B. (US) Abbott, D.C. (US) Chudoba, Jiří (FZU-D)_{RID, ORCID} Hejbal, Jiří (FZU-D)_{RID, ORCID} Hladík, Ondřej (FZU-D)_ORCID Jačka, Petr (FZU-D)_ORCID Kepka, Oldřich (FZU-D)_{RID, ORCID} Kroll, Jiří (FZU-D)_ORCID Kupčo, Alexander (FZU-D)_{RID, ORCID} Latoňová, Věra (FZU-D)_ORCID Lokajíček, Miloš (FZU-D)_{RID, ORCID} Lysák, Roman (FZU-D)_{RID, ORCID} Marčišovský, Michal (FZU-D)_{RID, ORCID} Mikeštíková, Marcela (FZU-D)_{RID, ORCID} Němeček, Stanislav (FZU-D)_{RID, ORCID} Penc, Ondřej (FZU-D)_ORCID Šícho, Petr (FZU-D)_{RID, ORCID} Staroba, Pavel (FZU-D)_{RID, ORCID} Svatoš, Michal (FZU-D)_{RID, ORCID} Taševský, Marek (FZU-D)_{RID, ORCID}
Number of authors	2854
Article number	061803
Source Title	Physical Review Letters. - : American Physical Society - ISSN 0031-9007 Roč. 131, č. 6 (2023)
Number of pages	23 s.
Language	eng - English
Country	US - United States
Keywords	ATLAS ; lepton: heavy ; W: leptonic decay ; W: rare decay
Subject RIV	BF - Elementary Particles and High Energy Physics
OECD category	Particles and field physics
Research Infrastructure	CERN-CZ III - 90240 - Fyzikální ústav AV ČR, v. v. i.
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271
UT WOS	001063973100001
EID SCOPUS	85168730698
DOI	10.1103/PhysRevLett.131.061803
Annotation	A search for a long-lived, heavy neutral lepton (N) in 139 fb-1 of 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<mN<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.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2024
Electronic address	https://hdl.handle.net/11104/0347355

Number of the records: 1