Neutron halos in the excited states of 12B
Belyaeva, T. L., Goncharov, S. A., Demyanova, A. S., Ogloblin, A.A., Danilov, A. N., Maslov, V. A., Sobolev, Y. G., Trzaska, W., Khlebnikov, S. V., Tyurin, G. P., Burtebaev, N., Janseitov, D., & Mukhamejanov, E. (2018). Neutron halos in the excited states of 12B. Physical Review C, 98(3), Article 034602. https://doi.org/10.1103/PhysRevC.98.034602
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Physical Review CAuthors
Date
2018Copyright
© 2018 American Physical Society
The differential cross sections of the 11B(d,p) 12B reaction leading to formation of the 1+ ground state and
the 0.95-MeV 2+, 1.67-MeV 2−, 2.62-MeV 1−, 2.72-MeV 0+, and 3.39-MeV 3− excited states of 12B are
measured at Ed = 21.5 MeV. The analysis of the data is carried out within the coupled-reaction-channels method
for the direct neutron transfer and the Hauser-Feshbach formalism of the statistical compound-nucleus model.
The spectroscopic factors, asymptotic normalization coefficients, and rms radii of the last neutron in all states
studied are deduced. The existence of the neutron halos in the 1.67-MeV 2− and 2.62-MeV 1− states is found,
consistent with the earlier published data. New information about the enlarged rms radii of the last neutron in
the 2.72-MeV 0+ (5.7 fm) and the unbound 3.389-MeV 3− (5.9 fm) states of 12B was obtained, resulting in the
possible existence of neutron halo-like states in 12B.
Publisher
American Physical SocietyISSN Search the Publication Forum
2469-9985Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/28243729
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