Abstract
In a recent breakup-reaction experiment using a beam at , the band head of the expected molecular rotation was clearly identified at about 10.3 MeV, from which a large monopole matrix element of and a large cluster-decay width were determined for the first time. These findings support the picture of strong clustering in , which has been a subject of intense investigations over the past decade. The results were obtained thanks to a specially arranged detection system around zero degrees, which is essential in determining the newly emphasized monopole strengths to signal the cluster formation in a nucleus.
- Received 10 December 2013
DOI:https://doi.org/10.1103/PhysRevLett.112.162501
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