Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

First Results from MicroBooNE's Low Energy Excess Search and Constraints on eV-Scale Sterile Neutrino Oscillations

Jul 8, 2022, 9:30 AM
Room 2 (Italia)

Room 2 (Italia)

Parallel Talk Neutrino Physics Neutrino Physics


Jay Hyun Jo (Yale University)


The MicroBooNE collaboration recently released a series of measurements aimed at investigating the nature of the excess of low-energy electromagnetic shower events observed by the MiniBooNE collaboration. In this talk, we will present the latest results from both a search of single photons in MicroBooNE, as well as a series of three independent analyses leveraging different reconstruction paradigms which look for an anomalous excess of electron neutrino events. We additionally will highlight new results that use these well-understood selections to perform a search for an eV scale sterile neutrino in the 3+1 oscillation framework. Constraints are presented for regions of sterile neutrino oscillation parameter space relevant to the Gallium/Reactor $\nu_e$ disappearance anomaly and LSND/MiniBooNE $\nu_e$ appearance anomalies.

In-person participation Yes

Primary author

Justin Evans (University of Manchester)

Presentation materials