Deformation-driven p-wave halos at the drip line: Ne 31

T. Nakamura, N. Kobayashi, Y. Kondo, Y. Satou, J. A. Tostevin, Y. Utsuno, N. Aoi, H. Baba, N. Fukuda, J. Gibelin, N. Inabe, M. Ishihara, D. Kameda, T. Kubo, T. Motobayashi, T. Ohnishi, N. A. Orr, H. Otsu, T. Otsuka, H. SakuraiT. Sumikama, H. Takeda, E. Takeshita, M. Takechi, S. Takeuchi, Y. Togano, K. Yoneda

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

The halo structure of Ne31 is studied using 1n-removal reactions on C and Pb targets at 230MeV/nucleon. A combined analysis of the cross sections of these nuclear and Coulomb dominated reactions that feed directly the Ne30 ground-state reveals Ne31 to have a small neutron separation energy, 0.15-0.10+0.16MeV, and spin-parity 3/2-. Consistency of the data with reaction and large-scale shell-model calculations identifies Ne31 as deformed and having a significant p-wave halo component, suggesting that halos are more frequent occurrences at the neutron drip line.

Original languageEnglish
Article number142501
JournalPhysical review letters
Volume112
Issue number14
DOIs
Publication statusPublished - 2014 Apr 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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