期刊
PHYSICAL REVIEW LETTERS
卷 126, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.132501
关键词
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资金
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-FG02-87ER-40316, DE-FG02-04ER-41320, DE-SC0014552]
- National Science Foundation [PHY-156556]
- Department of Energy National Nuclear Security Administration Steward Science Graduate Fellowship [DE-NA0002135]
- U.S. Department of Energy (DOE) [DE-SC0014552] Funding Source: U.S. Department of Energy (DOE)
A F-13 resonance was observed following a charge-exchange reaction between a fast O-13 beam and a Be-9 target, corresponding to a 5/2(+) excited state. The observed level decays via initial proton emissions to both the ground and first 2(+) state of O-12, with possibly a significant proton decay branch to the second 2(+) level in O-12. The wave function associated with the observed level may be collectivized due to coupling to the continuum above the threshold for proton decay to the 2(2)(+) state of O-12.
A F-13 resonance was observed following a charge-exchange reaction between a fast O-13 beam and a Be-9 target. The resonance was found in the invariant-mass distribution of 3p + C-10 events and probably corresponds to a 5/2(+) excited state. The ground state was also expected to be populated, but was not resolved from the background. The observed level decays via initial proton emissions to both the ground and first 2(+) state of O-12, which subsequently undergo 2p decay. In addition, there may also be a significant proton decay branch to the second 2(+) level in O-12. The wave function associated with the observed level may be collectivized due to coupling to the continuum as is it located just above the threshold for proton decay to the 2(2)(+) state of O-12.
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