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arXiv · 0802.4225

Single-Proton Removal Reaction Study of 16B

J. -L. Lecouey·N. A. Orr·F. M. Marques·N. L. Achouri·J. -C. Angelique·B. A. Brown·W. N. Catford·N. M. Clarke·M. Freer·B. R. Fulton·S. Grevy·F. Hanappe·K. L. Jones·M. Labiche·R. C. Lemmon·A. Ninane·E. Sauvan·K. M. Spohr·L. Stuttge
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Abstract

The low-lying level structure of the unbound system $^{16}$B has been investigated via single-proton removal from a 35 MeV/nucleon $^{17}$C beam. The coincident detection of the beam velocity $^{15}$B fragment and neutron allowed the relative energy of the in-flight decay of $^{16}$B to be reconstructed. The resulting spectrum exhibited a narrow peak some 85 keV above threshold. It is argued that this feature corresponds to a very narrow ($Γ\ll $100 keV) resonance, or an unresolved multiplet, with a dominant $π(p_{3/2})^{-1} \otimes ν(d_{5/2}^3)_{J=3/2^+}$ + $π(p_{3/2})^{-1} \otimes ν(d_{5/2}^2,s_{1/2})_{J=3/2^+}$ configuration which decays by d-wave neutron emission.

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J. -L. Lecouey, N. A. Orr, F. M. Marques, N. L. Achouri, J. -C. Angelique, B. A. Brown, W. N. Catford, N. M. Clarke, M. Freer, B. R. Fulton, S. Grevy, F. Hanappe, K. L. Jones, M. Labiche, R. C. Lemmon, A. Ninane, E. Sauvan, K. M. Spohr, L. Stuttge. 2008-02-28. Single-Proton Removal Reaction Study of 16B. https://doi.org/10.1016/j.physletb.2008.12.053

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