Structure of 14B and the evolution of N=9 single-neutron isotones

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We have used the 13B(d,p)14B reaction in inverse kinematics to study the properties of states in 14B, the lightest particle-bound N=9 isotone. The spectroscopic information, including spins, parities, and spectroscopic factors for the states observed in 14B are used to deduce the wave functions for the low-lying negative parity ν(sd) levels, as well as provide information about the evolution of the effective neutron 1s1/2-0d5/2 single-particle energies. The data confirm that the ground and first-excited states are predominantly s wave in character and are single-neutron halo states. The effective single-particle energies are found to match the trends set by other N=9 isotones. © 2013 American Physical Society.

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Physical Review C - Nuclear Physics

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