One-neutron knockout reaction of 17C on a hydrogen target at 70 MeV/nucleon
- Satou, Y.
- Hwang, J.W.
- Kim, S.
- Tshoo, K.
- Choi, S.
- Nakamura, T.
- Kondo, Y.
- Matsui, N.
- Hashimoto, Y.
- Nakabayashi, T.
- Okumura, T.
- Shinohara, M.
- Fukuda, N.
- Sugimoto, T.
- Otsu, H.
- Togano, Y.
- Motobayashi, T.
- Sakurai, H.
- Yanagisawa, Y.
- Aoi, N.
- Takeuchi, S.
- Gomi, T.
- Ishihara, M.
- Kawai, S.
- Ong, H.J.
- Onishi, T.K.
- Shimoura, S.
- Tamaki, M.
- Kobayashi, T.
- Matsuda, Y.
- Endo, N.
- Kitayama, M.
DOIAbstract
AbstractFirst experimental evidence of the population of the first 2− state in 16C above the neutron threshold is obtained by neutron knockout from 17C on a hydrogen target. The invariant mass method combined with in-beam γ-ray detection is used to locate the state at 5.45(1) MeV. Comparison of its populating cross section and parallel momentum distribution with a Glauber model calculation utilizing the shell-model spectroscopic factor confirms the core-neutron removal nature of this state. Additionally, a previously known unbound state at 6.11 MeV and a new state at 6.28(2) MeV are observed. The position of the first 2− state, which belongs to a member of the lowest-lying p–sd cross shell transition, is reasonably well described by the she...
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