Search for electromagnetic transitions between12C-12C cluster states in24Mg
- 41 Downloads
The superdeformed states in heavy nuclei withA≳60 are characterized by their gamma decay pattern. In light nuclei, this signature is still missing especially for the cluster states formed in light heavy-ion reactions. The aim of the present experiment was thus to search for γ-ray transitions between 10+ and 8+ resonant states formed in the12C +12C reaction. A bombarding energy ofElab = 32.9 MeV has been chosen to populate a known and isolated 10+ resonance. The experiment has been carried out in a triple coincident mode (fragment-fragment-g) with the outgoing binary fragments detected in two position-sensitive Si detectors and the γ rays in the 4π array Château de Cristal. A few events have been observed which we attributed to the γ-ray transitions we searched for. This would be the first time that such transitions have been seen and, under certain assumptions, a radiative partial width of (1.2 ± 0.4) 3 1025 has been deduced for the 10+ resonant state.
PACS 23.20.LvGamma transitions and level energies
PACS 27.3020 ≤ SA ≤ 38
PACS 01.30.CcConference proceedings
Unable to display preview. Download preview PDF.
- Erb K. A. andBromley D. A., inTreatise on Heavy-Ion Science, edited byD. A. Bromley, Vol.3 (Plenum Press, New York) 1985, pp. 201–310.Google Scholar