Population and decay of a two-quasineutron isomer in
Journal Article
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· Physical Review C
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- Univ. of Massachusetts, Lowell, MA (United States); Australian National Univ., Canberra, ACT (Australia)
- Univ. of Massachusetts, Lowell, MA (United States); UM-DAE Centre for Excellence in Basic Sciences, Mumbai (India)
- Univ. of Massachusetts, Lowell, MA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Maryland, College Park, MD (United States); Univ. of Sofia, Sofia (Bulgaria); Ames Research Lab., Adelphi, MD (United States)
- Univ. of Massachusetts, Lowell, MA (United States); Radiation Monitoring Devices, Inc., Watertown, MA (United States)
- Univ. of Sofia, Sofia (Bulgaria)
- Univ. of Massachusetts, Lowell, MA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Maryland, College Park, MD (United States)
- Japan Atomic Energy Agency, Ibaraki (Japan)
Here, the decay of a Kπ = 8– isomer in 244Pu and the collective band structures populating the isomer were studied using deep inelastic excitations with 47Ti and 208Pb beams, respectively. Precise measurements of M1/E2 branching ratios in the band confirm a 9/2–[734]νⓍ7/2+[624]ν configuration assignment for the isomer, validating the systematics of Kπ = 8–, two-quasineutron isomers observed in even-Z, N = 150 isotones. These isomers around the deformed shell gap at N = 152 provide critical benchmarks for theoretical predictions of single-particle energies in this gateway region to superheavy nuclei.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- Grant/Contract Number:
- AC02-06CH11357; FG02-94ER40848; FG02-94ER40834
- OSTI ID:
- 1339580
- Alternate ID(s):
- OSTI ID: 1328619
- Journal Information:
- Physical Review C, Vol. 94, Issue 2; ISSN 2469-9985
- Publisher:
- APSCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 6 works
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