Phys.Rev. C 93, 021302 (2016)

R.Dungan, S.L.Tabor, V.Tripathi, A.Volya, K.Kravvaris, B.Abromeit, D.D.Caussyn, S.Morrow, J.J.Parker, P.-L.Tai, J.M.VonMoss

Radiative decay of neutron-unbound intruder states in ¹⁹O

NUCLEAR REACTIONS ⁹Be(¹⁴C, α)¹⁹O, E=30, 35 MeV; measured Eγ, Iγ, αγ-, αγγ-coin using Compton suppressed Ge detector for γ rays and Si ΔE-E telescope for α particles at FSU John D. Fox Superconducting Laboratory. ¹⁹O; deduced levels, states above S(n), J, π. Comparison with shell model calculations in the 0p-0d-1s model space using the psdu interaction. Discussed competition between electromagnetic and neutron emission from unbound states, and comparison with an experimental neutron resonance yield curve from ¹⁸O(n, γ). Level systematics of ^17,19,21O.

NUCLEAR STRUCTURE ¹⁹O; calculated levels, J, π, Γ_n, Γ_γ, spectroscopic factors. Shell model calculations using the psdu interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.021302