Abstract
Using beta decays of a clean source of 12N produced at the IGISOL facility, we have measured the breakup of the 12C (12.71 MeV) state into three alpha particles with a segmented particle detector setup. The high quality of the data permits solving the question of the breakup mechanism of the 12.71 MeV state, a longstanding problem in few-body nuclear physics. Among existing models, a modified sequential model fits the data best, but systematic deviations indicate that a three-body description is needed.
Originalsprog | Engelsk |
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Tidsskrift | Physical Review Letters |
Vol/bind | 91 |
Udgave nummer | 8 |
Sider (fra-til) | 082502 |
ISSN | 0031-9007 |
DOI | |
Status | Udgivet - 22 aug. 2003 |
Udgivet eksternt | Ja |