Affordable Access

Access to the full text

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

Authors
  • Schwetz, Thomas1
  • Zhou, Albert1
  • Zhu, Jing-Yu1, 2
  • 1 Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany , Eggenstein-Leopoldshafen (Germany)
  • 2 Shanghai Jiao Tong University, Shanghai, 200240, China , Shanghai (China)
Type
Published Article
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Publication Date
Jul 26, 2021
Volume
2021
Issue
7
Identifiers
DOI: 10.1007/JHEP07(2021)200
Source
Springer Nature
Keywords
Disciplines
  • Regular Article - Theoretical Physics
License
Green

Abstract

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.

Report this publication

Statistics

Seen <100 times