The first excited state of 30Ne studied by proton inelastic scattering in reversed kinematics

Y. Yanagisawa, M. Notani, H. Sakurai, M. Kunibu, H. Akiyoshi, N. Aoi, H. Baba, K. Demichi, N. Fukuda, H. Hasegawa, Y. Higurashi, M. Ishihara, N. Iwasa, H. Iwasaki, T. Gomi, S. Kanno, M. Kurokawa, Y. U. Matsuyama, S. Michimasa, T. MinemuraT. Mizoi, T. Nakamura, A. Saito, M. Serata, S. Shimoura, T. Sugimoto, E. Takeshita, S. Takeuchi, K. Ue, K. Yamada, K. Yoneda, T. Motobayashi

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130 Citations (Scopus)

Abstract

The energy of the first excited state of the very neutron-rich nucleus 30Ne was determined by proton inelastic scattering. A liquid hydrogen target was bombarded by a beam of radioactive 30Ne at 48 MeV/nucleon, and energies of the de-excitation γ rays emitted from the excited 30Ne were measured. The observed transition is likely to be the one from the first 2+ state to the ground state of 30Ne. The excitation energy, 791(26) keV, is lower than that of 32Mg, indicating enhancement of deformation as the neutron excess increases in the N = 20 isotones. The results indicate that 30Ne belongs to the 'island of inversion'.

Original languageEnglish
Pages (from-to)84-89
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume566
Issue number1-2
DOIs
Publication statusPublished - 2003 Jul 24

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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