2025/12/22 by J. I. Collar, Ivan Esteban, Collar, J. I. +19 · 1 citation
Physics and Astronomy · #Neutrino Physics Research #Atomic and Subatomic Physics Research #Nuclear physics research studies
paper · doi:10.48550/arxiv.2512.19788
The Japan Proton Accelerator Research Complex (J-PARC) currently delivers a 1 MW, 3 GeV proton beam to the Materials and Life Science Experimental Facility (MLF). Power is expected to increase to 1.3 MW, driven by the needs of Hyper-Kamiokande. As a result, the MLF presently provides the highest neutron yield of any spallation source, while potentially holding the best current and foreseeable conditions for Coherent Elastic Neutrino-Nucleus Scattering (CEνNS) experimentation. We explore this potential, using as examples detector technologies presently funded for construction and under development. We quantify their sensitivity to a rich variety of particle physics scenarios, finding that very-high-statistics CEνNS measurements with significant sensitivity to relevant scenarios are feasible at this facility within the next few years.