Detection of Re-187 beta decay with a cryogenic microcalorimeter: Preliminary results

1992
5 pages
Published in:
  • Phys.Lett.B 295 (1992) 143-147
  • Published: 1992

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Abstract: (Elsevier)
187 Re, being the nuclide with the lowest known Q -value for β decay is the best candidate to set a limit to the antineutrino mass in a total absorption experiment. It is reported a preliminary measure of the end-point of the decay, that was obtained with a cryogenic microcalorimeter made up of a superconducting rhenium crystal and a germanium thermistor. Limits and possible improvements of the detector are discussed.
  • nucleus: semileptonic decay
  • semileptonic decay: nucleus
  • rhenium: lifetime
  • antineutrino: mass
  • mass: antineutrino
  • energy spectrum
  • calorimeter: experimental results
  • cryogenics