Structures and decay of deep-hole states in light nuclei populated by the (p, 2p 2p) reactions
- Cite this article as:
- Yosoi, M., Akimune, H., Daito, I. et al. Phys. Atom. Nuclei (2004) 67: 1810. doi:10.1134/1.1811183
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Decay particles from the s-hole states in 11B and 15N have been measured in coincidence with the quasifree 12C(p, 2p) and 16O(p, 2p) reactions at Ep=392 MeV. Triton decay is found to be dominant for the 11B(s-hole) state and also found to be larger than α decay for the 15N(s-hole) state despite its smaller Q value compared to α decay. Measured decay branching ratios are discussed in comparison with the results of statistical-model, SU(3)-model, and shell-model calculations. The energy spectra around the s-hole states in both 11B and 15N exhibit some bumplike structures, which can be qualitatively explained by recent shell-model calculations for both nuclei.