6533b861fe1ef96bd12c44a2
RESEARCH PRODUCT
Icecube/DeepCore tests for novel explanations of the MiniBooNE anomaly
Pilar Colomasubject
Particle physicsSterile neutrinoPhotonPhysics and Astronomy (miscellaneous)FOS: Physical scienceslcsh:AstrophysicsParameter space01 natural sciencesCosmologyHigh Energy Physics - ExperimentMiniBooNEHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)lcsh:QB460-4660103 physical scienceslcsh:Nuclear and particle physics. Atomic energy. Radioactivity010306 general physicsEngineering (miscellaneous)Physics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyHidden sectorHigh Energy Physics - Phenomenologylcsh:QC770-798High Energy Physics::ExperimentAnomaly (physics)Neutrinodescription
While the low-energy excess observed at MiniBooNE remains unchallenged, it has become increasingly difficult to reconcile it with the results from other sterile neutrino searches and cosmology. Recently, it has been shown that non-minimal models with new particles in a hidden sector could provide a better fit to the data. As their main ingredients they require a GeV-scale $Z'$, kinetically mixed with the photon, and an unstable heavy neutrino with a mass in the 150 MeV range that mixes with the light neutrinos. In this letter we point out that atmospheric neutrino experiments (and, in particular, IceCube/DeepCore) could probe a significant fraction of the parameter space of such models by looking for an excess of "double-bang" events at low energies, as proposed in our previous work (arXiv:1707.08573). Such a search would probe exactly the same production and decay mechanisms required to explain the anomaly.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-09-01 | The European Physical Journal C |