Low-lying states in the unbound N11 nucleus

E. Casarejos*, C. Angulo, P. J. Woods, F. C. Barker, P. Descouvemont, M. Aliotta, T. Davinson, P. Demaret, M. Gaelens, P. Leleux, Z. Liu, M. Loiselet, A. S. Murphy, A. Ninane, I. A. Roberts, G. Ryckewaert, J. S. Schweitzer, F. Vanderbist

*Corresponding author for this work

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    25 Citations (Scopus)

    Abstract

    We have investigated the low-energy states of N11 by the resonant elastic-scattering method in inverse kinematics using a C10 beam and a (CH2)n target at the CYCLONE facility at Louvain-la-Neuve. Recoil protons were detected at laboratory angles θlab=5.2°-18.3° in a ΔE-E detector system. The absolute C10+p elastic cross-section data were analyzed in the R-matrix framework. We found N11 to be unbound with respect to proton emission by 1.54±0.02 MeV, with a decay width of 0.83±0.03 MeV. These results are used to calculate the two-proton decay width of the O12 ground state.

    Original languageEnglish
    Article number014319
    JournalPhysical Review C - Nuclear Physics
    Volume73
    Issue number1
    DOIs
    Publication statusPublished - Jan 2006

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