Observation of a two-proton halo in 17Ne

R. Kanungo, M. Chiba, B. Abu-Ibrahim, S. Adhikari, D. Q. Fang, N. Iwasa, K. Kimura, K. Maeda, S. Nishimura, T. Ohnishi, A. Ozawa, C. Samanta, T. Suda, T. Suzuki, Q. Wang, C. Wu, Y. Yamaguchi, K. Yamada, A. Yoshida, T. ZhengI. Tanihata

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9 Citations (Scopus)


The measurement of longitudinal momentum distribution for two-proton removal from the proton-drip line nucleus 17Ne with a Be target at 64 A MeV is reported. The observed narrow momentum distribution and the large interaction cross-section suggests the formation of a two-proton halo. The data analyzed within the Few-body Glauber model suggests a significant probability of the two valence protons to abnormally occupy the 2s 1/2 orbit, indicating its lowering in proton-rich nuclei.

Original languageEnglish
Pages (from-to)327-330
Number of pages4
JournalEuropean Physical Journal A
Issue numberSUPPL. 1
Publication statusPublished - 2005 Sep 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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