UNSPECIFIED (2025) Search for heavy neutral leptons in π + decays to positrons. Phys Lett Sect B Nucl Elem Part High-Energy Phys: 140119. ISSN 0370-2693 (In Press)
Full text not available from this repository.Abstract
A search for heavy neutral lepton (N) production in π + → e + N in-flight decays using data collected by the NA62 experiment at CERN in 2017–2024 is reported. Upper limits for the extended neutrino mixing matrix element |U e4|2 are established at the level of 10 − 8 for heavy neutral leptons with mass in the range 95–126 MeV/c 2 and lifetime exceeding 50 ns.
Item Type:
Journal Article
Journal or Publication Title:
Phys Lett Sect B Nucl Elem Part High-Energy Phys
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? nuclear and high energy physics ??
Departments:
ID Code:
234616
Deposited By:
Deposited On:
06 Jan 2026 13:35
Refereed?:
Yes
Published?:
In Press
Last Modified:
06 Jan 2026 13:35