Enhancing Solar Neutrino Sensitivity with Neutron Tagging

19 Jun 2025, 17:12
17m
Clifton Court Hall 1170 (UC)

Clifton Court Hall 1170

UC

Speaker

Obada Nairat

Description

Solar neutrinos offer crucial insights into neutrino properties and serve as a powerful probe of flavor oscillations in matter. However, detecting them requires effective suppression of backgrounds. One of these is spallation backgrounds—beta decays of unstable isotopes produced by cosmic-ray muons— which pose a major challenge above 5 MeV. We show that neutron tagging, made possible by the recent addition of dissolved gadolinium, provides a powerful new method to identify and reject these backgrounds. This technique is particularly relevant for future shallower detectors like Hyper-Kamiokande and JUNO.

Author

Co-authors

Prof. John Beacom Shirley Li (UC Irvine)

Presentation materials