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Title: Updated evaluation of potential ultralow Q -value β -decay candidates

Journal Article · · Physical Review. C
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [2];  [4];  [5]; ORCiD logo [6]
  1. Central Michigan Univ., Mount Pleasant, MI (United States); Central Michigan University
  2. Central Michigan Univ., Mount Pleasant, MI (United States)
  3. Central Michigan Univ., Mount Pleasant, MI (United States); Michigan State Univ., East Lansing, MI (United States)
  4. Colorado School of Mines, Golden, CO (United States); Michigan State Univ., East Lansing, MI (United States)
  5. Univ. Paris-Saclay, Palaiseau (France)
  6. Central Michigan Univ., Mount Pleasant, MI (United States); National Superconducting Cyclotron Lab., East Lansing, MI (United States)

“Ultralow” Q-value β decays are referred to as such due to their low decay energies of less than ≈1 keV. Such a low energy decay is possible when the parent nucleus decays to an excited state in the daughter, with an energy close to that of the Q value. These decays are of interest as potential new candidates for neutrino mass determination experiments and as a testing ground for studies of atomic interference effects in the nuclear decay process. In this paper, we provide an updated evaluation of atomic mass data and nuclear energy-level data to identify potential ultralow Q-value β decay candidates. For many of these candidates, more precise and accurate atomic mass data is needed to determine if the Q value of the potential ultralow decay branch is energetically allowed and in fact ultralow. Furthermore, the relevant precise atomic mass measurements can be achieved via Penning trap mass spectrometry.

Research Organization:
Colorado School of Mines, Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
Grant/Contract Number:
FG02-93ER40789; SC0015927; SC0000661
OSTI ID:
1923297
Alternate ID(s):
OSTI ID: 1985512
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 1 Vol. 107; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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