KM3NeT/ORCA is a next-generation neutrino telescope optimised for atmospheric neutrino oscillations studies. In this paper, the sensitivity of ORCA to the presence of a light sterile neutrino in a 3+1 model is presented. After three years of data taking, ORCA will be able to probe the active-sterile mixing angles θ14, θ24, θ34 and the effective angle θμe, over a broad range of mass squared difference ∆m412 ∼ [10−5, 10] eV2, allowing to test the eV-mass sterile neutrino hypothesis as the origin of short baseline anomalies, as well as probing the hypothesis of a very light sterile neutrino, not yet constrained by cosmology. ORCA will be able to explore a relevant fraction of the parameter space not yet reached by present measurements. [Figure not available: see fulltext.]

Original languageEnglish
Article number180
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - Oct 2021


  • Neutrino Detectors and Telescopes (experiments)
  • Oscillation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Sensitivity to light sterile neutrino mixing parameters with KM3NeT/ORCA'. Together they form a unique fingerprint.

Cite this