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The Sarov tritium neutrino experiment (SATURNE) will study neutrino-atom collisions at unprecedentedly low energies. It will involve a high-intensity tritium source of electron antineutrinos with a total tritium mass of at least 1 kg (10 MCi) and possibly up to 4 kg (40 MCi). This offers a unique opportunity for obtaining the first experimental evidence of coherent elastic neutrino-atom scattering. With 5-year data using a 1- \(\mathrm {m}^3\) liquid He-4 detector in superfluid state, the measurement of the elastic neutrino-atom interaction channel can be achieved that can also allow probing the neutrino magnetic moment at a level of \(\mu _\nu \sim 10^{-13}\,\mu _B\) , which by an order of magnitude better than the world-leading upper limits. The ionizing neutrino-atom collisions will be studied using a cryogenic 4-kg Si crystal detector and a low-temperature 14-kg \(\mathrm {SrI}_2\) (Eu) scintillation detector. Both detectors are expected to achieve a record-high sensitivity to the electron-antineutrino \(\mu _\nu \) value of the order of \({\sim }10^{-12}\,\mu _B\) after 1 year of taking data.

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SATURNE: The Sarov Tritium Neutrino Experiment for Probing Coherent Elastic Neutrino-Atom Scattering and Neutrino Electromagnetic Interactions

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • M. Cadeddu,
  • F. Dordei,
  • C. Giunti,
  • A. P. Ivashkin,
  • K. A. Kouzakov,
  • F. M. Lazarev,
  • O. A. Moskalev,
  • I. S. Stepantsov,
  • A. I. Studenikin,
  • I. I. Tkachev,
  • V. N. Trofimov,
  • M. A. Verkhovtsev,
  • M. M. Vyalkov,
  • A. A. Yukhimchuk,
  • E. F. Zagirdinova

摘要

The Sarov tritium neutrino experiment (SATURNE) will study neutrino-atom collisions at unprecedentedly low energies. It will involve a high-intensity tritium source of electron antineutrinos with a total tritium mass of at least 1 kg (10 MCi) and possibly up to 4 kg (40 MCi). This offers a unique opportunity for obtaining the first experimental evidence of coherent elastic neutrino-atom scattering. With 5-year data using a 1- \(\mathrm {m}^3\) liquid He-4 detector in superfluid state, the measurement of the elastic neutrino-atom interaction channel can be achieved that can also allow probing the neutrino magnetic moment at a level of \(\mu _\nu \sim 10^{-13}\,\mu _B\) , which by an order of magnitude better than the world-leading upper limits. The ionizing neutrino-atom collisions will be studied using a cryogenic 4-kg Si crystal detector and a low-temperature 14-kg \(\mathrm {SrI}_2\) (Eu) scintillation detector. Both detectors are expected to achieve a record-high sensitivity to the electron-antineutrino \(\mu _\nu \) value of the order of \({\sim }10^{-12}\,\mu _B\) after 1 year of taking data.