Reexamination of the excited states of C12

M. Freer*, I. Boztosun, C. A. Bremner, S. P.G. Chappell, R. L. Cowin, G. K. Dillon, B. R. Fulton, B. J. Greenhalgh, T. Munoz-Britton, M. P. Nicoli, W. D.M. Rae, S. M. Singer, N. Sparks, D. L. Watson, D. C. Weisser

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    92 Citations (Scopus)


    An analysis of the C12(C12,3α)C12 reaction was made at beam energies between 82 and 106 MeV. Decays to both the ground state and the excited states of Be8 were isolated, allowing states of different characters to be identified. In particular, evidence was found for a previously observed state at 11.16 MeV. An analysis of the angular distributions of the unnatural parity states at 11.83 and 13.35 MeV, previously assigned Jπ=2-, calls into question the validity of these assignments, suggesting that at least one of the states may correspond to Jπ=4-. Evidence is also found for 1- and 3- strengths associated with broad states between 11 and 14 MeV.

    Original languageEnglish
    Article number034320
    JournalPhysical Review C - Nuclear Physics
    Issue number3
    Publication statusPublished - 24 Sept 2007


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