Journal
PHYSICAL REVIEW C
Volume 83, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.83.031303
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Funding
- U.S. Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]
- National Science Foundation [PHY-06-06007, PHY-06-51627, PHY-07-56474]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969173] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [855456] Funding Source: National Science Foundation
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A new resonance having a relative decay energy of similar to 0.6 MeV has been observed above the two-neutron separation energy in O-24 at an excitation energy of similar to 7.5 MeV. The new level was found to directly feed the first excited state in O-23, an E = 0.045(2)-MeV resonance, through the measurement of neutron-neutron correlations. Energy level comparisons with O-23 suggest that this new level in O-24 is dominated by an unpaired neutron in the nu 0d(3/2) single-particle orbital coupled to a single hole in the nu 0d(5/2) single-particle orbital. Establishment of this two-neutron discrimination technique provides a means for investigating high-lying excited states in neutron-rich nuclei.
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