Single-Proton Removal Reaction Study of 16B

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 ($\Gamma \ll$100 keV) resonance, or an unresolved multiplet, with a dominant $\pi (p_{3/2}{)}^{-1}\otimes \nu (d_{5/2}^3{)}_{J=3/2^{+}}$ + $\pi (p_{3/2}{)}^{-1}\otimes \nu (d_{5/2}^2,s_{1/2}{)}_{J=3/2^{+}}$ configuration which decays by d-wave neutron emission.

16 pages, 5 figures, 1 table, submitted to Phys. Lett. B

References in corpus (4)

• One-neutron removal reactions on neutron-rich psd-shell nuclei
• One-neutron removal reactions on light neutron-rich nuclei
• Unbound exotic nuclei studied by projectile fragmentation
• Extended sudden approximation model for high-energy nucleon removal reactions

Cited by in corpus (9)

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• Structure of the neutron-rich N=7 isotones 10Li and 9He
• Chronology of the three-body dissociation of ${}^8$He
• Novel techniques to search for neutron radioactivity
• Coulomb distortion and medium corrections in nucleon-removal reactions
• Medium effects in direct reactions