Intruder dominance in the $${0_2^+}$$ state of 32Mg studied with a novel technique for in-flight decays
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. and Dept. of Physics and Astronomy
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Univ. of Massachusetts, Lowell, MA (United States). Dept. of Physics
- Univ. zu Köln, Köln (Germany). Inst. für Kernphysik
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
- Osaka Univ., Ibaraki, Osaka (Japan). Research Center for Nuclear Physics
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Ruđer Boškovic Inst., Zagreb (Croatia)
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.
- Univ. of Surrey, Guildford, Surrey (United Kingdom). Dept. of Physics
The development of advanced $$γ$$-ray tracking arrays allows for a sensitive new technique to investigate elusive states of exotic nuclei with fast rare-isotope beams. By taking advantage of the excellent energy and position resolution of the Gamma-Ray Energy Tracking In-beam Nuclear Array in this study, we developed a novel technique to identify in-flight isomeric decays of the 0$$^+_2$$ state in 32Mg populated in a two-proton removal reaction. We confirm the 0$$^+_2$$ → 2$$^+_1$$ $$γ$$-ray transition of 32Mg and constrain the 0$$^+_2$$ decay lifetime, suggesting a large collectivity. The small partial cross section populating the 0$$^+_2$$ state in this reaction provides experimental evidence for the reduced occupancy of the normal configuration of the 0$$^+_2$$ state, indicating the intruder dominance of this state.
- Research Organization:
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0003180; AC02-05CH11231
- OSTI ID:
- 1570217
- Alternate ID(s):
- OSTI ID: 1737579
- Journal Information:
- Physical Review C, Vol. 100, Issue 4; ISSN 2469-9985
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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