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<b>Abstract</b>— <p>Antineutrino spectra of fissile isotopes were calculated using a new method of fitting four experimental spectra measured with high statistics. Calculation was made based on summation method with the possibility of changing individual spectrum shape of unknown fragments. Obtained calculated spectra conforms to all experiments and reproduce with the best accuracy measured inverse beta decay cross sections. The “bump” observed in comparison of measured spectra with the calculated ones disappeared.</p>

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Nuclear Reactor Fuel Isotopes Antineutrino Spectra from Fission Fragments

  • 期刊论文

  • 发表日期：

    2026年6月18日

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  • V. V. Sinev,
  • P. I. Alzhev,
  • S. V. Ingerman,
  • P. Yu. Naumov,
  • A. P. Vlasenko

摘要

Abstract—

Antineutrino spectra of fissile isotopes were calculated using a new method of fitting four experimental spectra measured with high statistics. Calculation was made based on summation method with the possibility of changing individual spectrum shape of unknown fragments. Obtained calculated spectra conforms to all experiments and reproduce with the best accuracy measured inverse beta decay cross sections. The “bump” observed in comparison of measured spectra with the calculated ones disappeared.