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Title: Structure of the exotic He 9 nucleus from the no-core shell model with continuum

Journal Article · · Physical Review C
 [1];  [1];  [1];  [2];  [2];  [3]
  1. TRIUMF, Vancouver, BC (Canada)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Univ. Paris-Sud, Univ. Paris-Saclay, Orsay (France)

Here, the exotic 9He nucleus, which presents one of the most extreme neutron-to-proton ratios, belongs to the N = 7 isotonic chain famous for the phenomenon of ground-state parity inversion with decreasing number of protons. Consequently, it would be expected to have an unnatural (positive) parity ground state similar to 11Be and 10Li. Despite many experimental and theoretical investigations, its structure remains uncertain. Apart from the fact that it is unbound, other properties including the spin and parity of its ground state, and the very existence of additional low-lying resonances are still a matter of debate

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC52-07NA27344; SCW1158; SCW0498
OSTI ID:
1438721
Alternate ID(s):
OSTI ID: 1425992
Report Number(s):
LLNL-JRNL-743601; PRVCAN; TRN: US1900502
Journal Information:
Physical Review C, Vol. 97, Issue 3; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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