EPJ Web of Conferences (Jan 2017)

Beta-strength and anti-neutrino spectra from total absorption spectroscopy of a decay chain 142Cs→142Ba→142La

  • Wolińska-Cichocka Marzena,
  • Rasco B. Charles,
  • Rykaczewski Krzysztof P.,
  • Brewer Nathan T.,
  • Stracener Daniel,
  • Grzywacz Robert,
  • Gross Carl J.,
  • kowska Aleksandra Fijał,
  • Goetz K. Callie,
  • Karny Marek,
  • King Toby,
  • Go Shintaro,
  • McCutchan Elizabeth A.,
  • Nesaraja Caroline,
  • Sonzogni Alejandro A.,
  • Wang Enhong,
  • Winger Jeff A.,
  • Xiao Yongchi,
  • Zachary Christopher J.,
  • Zganjar Edward F.

DOI
https://doi.org/10.1051/epjconf/201714610005
Journal volume & issue
Vol. 146
p. 10005

Abstract

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Beta decays of mass A = 142 isobaric chain starting from 142Cs have been investigated by means of Modular Total Absorption Spectrometer (MTAS) and on-line mass separation at Oak Ridge National Laboratory. The beta strength distribution derived for 142Cs decay from MTAS spectra is showing significant differences in β-feeding pattern when compared to the values listed at nuclear databases. MTAS results are shifting the associated anti-neutrino energy spectrum towards lower energies. A decay pattern deduced for 142Ba is similar to earlier reported results.