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β -decay Q values among the A=50 Ti-V-Cr isobaric triplet and atomic masses of Ti46,47,49,50 , V50,51 , and Cr50,5254

Journal Article · · Physical Review C
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [5];  [8];  [9]
  1. Central Michigan Univ., Mount Pleasant, MI (United States); Central Michigan University
  2. Facility for Rare Isotope Beams, East Lansing, MI (United States); Michigan State Univ., East Lansing, MI (United States)
  3. National Superconducting Cyclotron Lab., East Lansing, MI (United States); Univ. Greifswald, Greifswald (Germany)
  4. Central Michigan Univ., Mount Pleasant, MI (United States)
  5. National Superconducting Cyclotron Lab., East Lansing, MI (United States)
  6. Michigan State Univ., East Lansing, MI (United States); National Superconducting Cyclotron Lab., East Lansing, MI (United States)
  7. Central Michigan Univ., Mount Pleasant, MI (United States); National Superconducting Cyclotron Lab., East Lansing, MI (United States)
  8. Central Michigan Univ., Mount Pleasant, MI (United States); Michigan State Univ., East Lansing, MI (United States); National Superconducting Cyclotron Lab., East Lansing, MI (United States)
  9. Michigan State Univ., East Lansing, MI (United States); National Superconducting Cyclotron Lab., East Lansing, MI (United States); Univ. of Notre Dame, Notre Dame, IN (United States)
This manuscript describes a measurement of the Q value for the highly forbidden beta-decays of 50V and the double electron capture decay of 50Cr. The Q value corresponds to the total energy released during the decay and is equivalent to the mass difference between parent and daughter atoms. This mass difference was measured using high precision Penning trap mass spectrometry with the Low Energy Beam and Ion Trap facility at the National Superconducting Cyclotron Laboratory. The Q value enters into theoretical calculations of the half-life and beta-decay spectrum for the decay, so improves these calculations. In addition the Q value corresponds to the end point energy of the beta-decay spectrum, which has been precisely measured for several highly-forbidden decays using modern low background detector techniques. Hence, our Q value measurements provide a test of systematics for these detectors. In addition, we have measured the absolute atomic masses of 46,47,49,50Ti, 50,51V, and 50,52-52Cr, providing improvements in precision by factors of up to 3. These atomic masses help to strengthen global evaluations of all atomic mass data, such as the Atomic Mass Evaluation.
Research Organization:
Central Michigan Univ., Mount Pleasant, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
SC0015927
OSTI ID:
1401972
Alternate ID(s):
OSTI ID: 1400436
Journal Information:
Physical Review C, Journal Name: Physical Review C Journal Issue: 4 Vol. 96; ISSN PRVCAN; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (7)

New mass measurements with trapped (radioactive) ions and related fundamental physics journal May 2019
Design and characterization of Ion sources for CHIP-TRAP journal August 2019
Direct determination of the La 138 β -decay Q value using Penning trap mass spectrometry journal July 2019
Investigation of the potential ultralow Q -value β -decay candidates Sr 89 and Ba 139 using Penning trap mass spectrometry journal August 2019
Quenching of the N = 32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes journal August 2018
Evaluation of high-precision atomic masses of A ∼ 50–80 and rare-earth nuclides measured with ISOLTRAP journal June 2019
Evaluation of high-precision atomic masses of A ∼ 50–80 and rare-earth nuclides measured with ISOLTRAP text January 2019

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