High-spin negative parity states in 19F
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Levels at 7.17, 8.29, 8.96 and 9.88 MeV in 19F have been assigned spin and parity 11 2-, 13 2-, 11 2- and 11 2-, respectively, from resonance strength and γ-ray angular distribution measurements employing the 15N(α,γ) 19F reaction. An earlier assignment of 11 2+ to the 8.96 MeV level is incorrect. The measured properties of the 11 2- states are compared with the results of both SU (3) shell model and cluster model calculations.
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics