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Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes

Journal Article · · Physical Review. C
 [1];  [2];  [3];  [4];  [3];  [5];  [6];  [3];  [7];  [8];  [9];  [9];  [10];  [9];  [4];  [8];  [8];  [6];  [5];  [3] more »;  [11];  [12];  [3];  [13];  [14];  [5];  [8];  [9];  [3];  [8];  [15];  [16];  [3];  [9];  [17] « less
  1. TRIUMF, Vancouver, BC (Canada); Univ. of British Columbia, Vancouver, BC (Canada); Facility for Rare Isotope Beams
  2. TRIUMF, Vancouver, BC (Canada); Univ. of York (United Kingdom)
  3. Michigan State Univ., East Lansing, MI (United States)
  4. Justus-Liebig Univ., Giessen (Germany)
  5. Justus-Liebig Univ., Giessen (Germany); GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
  6. TRIUMF, Vancouver, BC (Canada); Heidelberg Univ. (Germany)
  7. TRIUMF, Vancouver, BC (Canada); McGill Univ., Montreal, QC (Canada)
  8. TRIUMF, Vancouver, BC (Canada)
  9. TRIUMF, Vancouver, BC (Canada); Univ. of British Columbia, Vancouver, BC (Canada)
  10. TRIUMF, Vancouver, BC (Canada); Univ. of Manitoba, Winnipeg, MB (Canada)
  11. Michigan State Univ., East Lansing, MI (United States); Central Michigan Univ., Mount Pleasant, MI (United States)
  12. TRIUMF, Vancouver, BC (Canada); Justus-Liebig Univ., Giessen (Germany); Univ. of Edinburgh, Scotland (United Kingdom)
  13. TRIUMF, Vancouver, BC (Canada); Colorado School of Mines, Golden, CO (United States)
  14. Central Michigan Univ., Mount Pleasant, MI (United States)
  15. Univ. of Manitoba, Winnipeg, MB (Canada)
  16. Univ. of British Columbia, Vancouver, BC (Canada)
  17. TRIUMF, Vancouver, BC (Canada); Univ. of Victoria, BC (Canada)
+ Show Author Affiliations
Nuclear mass measurements of isotopes are key to improving our understanding of nuclear structure across the chart of nuclides, in particular, for the determination of the appearance or disappearance of nuclear shell closures. Here, we present high-precision mass measurements of neutron-rich Ca, Ti, and V isotopes performed at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) and the Low Energy Beam and Ion Trap (LEBIT) facilities. These measurements were made using the TITAN multiple-reflection time-of-flight mass spectrometer (MR-ToF-MS) and the LEBIT 9.4T Penning trap mass spectrometer. In total, 13 masses were measured, 8 of which represent increases in precision over previous measurements. These measurements refine trends in the mass surface around N=32 and N=34, and support the disappearance of the N=32 shell closure with increasing proton number. Additionally, our data do not support the presence of a shell closure at N=34.
Research Organization:
Central Michigan Univ., Mount Pleasant, MI (United States)
Sponsoring Organization:
German Federal Ministry for Education and Research (BMBF); German Research Foundation (DFG); National Research Council (NRC); National Science Foundation (NSF); Natural Sciences and Engineering Research Council (NSERC); USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
TRIUMF
Grant/Contract Number:
FG02-93ER40789; SC0015927
OSTI ID:
1907671
Alternate ID(s):
OSTI ID: 1985498
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 106; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
binding energy & masses
nuclear structure & decays
penning traps
time-of-flight mass spectrometry