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Constraining active-sterile neutrino transition magnetic moments at DUNE near and far detectors

Schwetz, Thomas ORCID iD icon 1; Zhou, Albert ORCID iD icon 1; Zhu, Jing-Yu 1
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)


We consider the sensitivity of the DUNE experiment to a heavy neutral lepton, HNL (also known as sterile neutrino) in the mass range from a few MeV to a few GeV, interacting with the Standard Model via a transition magnetic moment to the active neutrinos, the so-called dipole portal. The HNL is produced via the up-scattering of active neutrinos, and the subsequent decay inside the detector provides a single-photon signal. We show that the tau-neutrino dipole portal can be efficiently probed at the DUNE far detector, using the tau-neutrino flux generated by neutrino oscillations, while the near detector provides better sensitivity to the electron- and muon-neutrino dipole portal. DUNE will be able to explore large regions of currently unconstrained parameter space and has comparable sensitivity to other planned dedicated experiments, such as SHiP. We also comment briefly on the sensitivity to pure HNL mixing with the tau neutrino at the DUNE far detector.

Verlagsausgabe §
DOI: 10.5445/IR/1000136012
Veröffentlicht am 29.07.2021
DOI: 10.1007/JHEP07(2021)200
Zitationen: 20
Zitationen: 27
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 07.2021
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen-ID: 1000136012
HGF-Programm 51.13.05 (POF IV, LK 01) Theoretische Astroteilchenphysik
Erschienen in Journal of high energy physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 2021
Heft 7
Seiten Art.-Nr.: 200
Vorab online veröffentlicht am 26.07.2021
Nachgewiesen in arXiv
Web of Science
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