The transfer reaction B(N, C)C

A. Di Pietro, R. Neal, F. Amorini, W. Bradfield-Smith, G. Cardella, T. Davinson, P. Figuera, W. Galster, R. Irvine, P. Leleux, J. Mackenzie, A. Musumarra, A. Ninane, G. Pappalardo, A.C. Shotter, C. Sukosd, F. Rizzo, S. Tudisco, P. Woods

Research output: Contribution to journalArticlepeer-review

Abstract

The transfer reaction B(N, C)C* has been investigated at the two laboratory energies E=45 MeV and E=29.5 MeV. Particle-γ and particle-particle coincidences have been measured. The coincidence between a heavy ion and the 15.1 MeV γ-ray emitted from C* shows transition to the C+C* and C*+C* exit channels. These indicate the mixed ground-state structure of N. DWBA calculations have also been performed. Analysis of particle-particle coincidence data revealed the presence of transfer channels also to unbound states of C such as C+C* (E* >7.64 MeV) and C*+C* (E* >7.64 MeV). The angular distributions have been extracted for these two channels. Six-alpha-particle events have also been analyzed. Some of these events have been identified as coming from B(N,C*)12C* reaction. An enhancement in the six-α cross-section is observed at an excitation energy for the compound nucleus Mg close to the 46 MeV resonances observed in C+C inelastic scattering. These six-alphas events are generated mostly from the break-up of C(3) + C(3) and therefore seems not to be associated with the six-alphas chain state.
Original languageEnglish
Pages (from-to)909-916
Number of pages8
JournalNuovo Cimento A
Volume111
Issue number8-9
Publication statusPublished - 1 Aug 1998

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