Enhanced monopole transition strength from the cluster decay of 13C
Abstract
The inelastic excitations and cluster decay of 13C have been measured using the reaction, 9Be(13C,13C* → 9Be + α)9Be. We observe strong excitation to the 14.3-MeV (1/2-) resonant state from the cluster-decay channel, leading to an enhanced monopole matrix element of (6.3 ± 0.6) fm2. This large cluster-related monopole strength is a clear indication of the cluster-structure domination of this state and is consistent with the recent prediction of the orthogonality condition model (OCM). It would be interesting to further explore the three-center molecular rotational band that is initiated from the observed band-head.
- Publication:
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Science China Physics, Mechanics, and Astronomy
- Pub Date:
- January 2019
- DOI:
- 10.1007/s11433-018-9258-7
- Bibcode:
- 2019SCPMA..6212011F
- Keywords:
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- inelastic excitation;
- monopole transition;
- cluster decay