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<p>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 (CE<i>ν</i>NS) 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 CE<i>ν</i>NS measurements with significant sensitivity to relevant scenarios are feasible at this facility within the next few years.</p>

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Coherent elastic neutrino-nucleus scattering at the Japan Proton Accelerator Research Complex

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月11日

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  • J. I. Collar,
  • Ivan Esteban,
  • J. J. Gomez-Cadenas,
  • M. C. Gonzalez–Garcia,
  • L.-C. Ji,
  • L. Larizgoitia,
  • C. M. Lewis,
  • F. Monrabal,
  • João Paulo Pinheiro.,
  • A. Simón,
  • S. G. Yoon

摘要

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.