Measurement of the Antineutrino Spectrum from ^{235}U Fission at HFIR with PROSPECT.

@article{Ashenfelter2019MeasurementOT,
  title={Measurement of the Antineutrino Spectrum from ^\{235\}U Fission at HFIR with PROSPECT.},
  author={J. Ashenfelter and A. Balantekin and H. Band and C. Bass and D. Bergeron and D. Berish and N. Bowden and J. Brodsky and C. Bryan and J. Cherwinka and T. Classen and A. Conant and A. Cox and D. Davee and D. Dean and G. Deichert and M. Diwan and M. Dolinski and A. Erickson and M. Febbraro and B. Foust and J. Gaison and A. Galindo-Uribarri and C. Gilbert and K. Gilje and B. Hackett and S. Hans and A. Hansell and K. Heeger and J. Insler and D. Jaffe and X. Ji and D. Jones and O. Kyzylova and C. Lane and T. Langford and J. Larosa and B. Littlejohn and X. Lu and D. Martinez Caicedo and J. Matta and R. McKeown and M. Mendenhall and J. Minock and P. Mueller and H. Mumm and J. Napolitano and R. Neilson and J. Nikkel and D. Norcini and S. Nour and D. Pushin and X. Qian and E. Romero-Romero and R. Rosero and D. Sarenac and P. T. Surukuchi and A. B. Telles and M. A. Tyra and R. Varner and B. Viren and C. White and J. Wilhelmi and T. Wise and M. Yeh and Y. Yen and A. Zhang and C. Zhang and X Zhang},
  journal={Physical review letters},
  year={2019},
  volume={122 25},
  pages={
          251801
        }
}
This Letter reports the first measurement of the ^{235}U ν[over ¯]_{e} energy spectrum by PROSPECT, the Precision Reactor Oscillation and Spectrum experiment, operating 7.9 m from the 85  MW_{th} highly enriched uranium (HEU) High Flux Isotope Reactor. With a surface-based, segmented detector, PROSPECT has observed 31678±304(stat) ν[over ¯]_{e}-induced inverse beta decays, the largest sample from HEU fission to date, 99% of which are attributed to ^{235}U. Despite broad agreement, comparison of… Expand

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