2012年2月
Interaction cross sections for Ne isotopes towards the island of inversion and halo structures of Ne-29 and Ne-31
PHYSICS LETTERS B
- 巻
- 707
- 号
- 3-4
- 開始ページ
- 357
- 終了ページ
- 361
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physletb.2011.12.028
- 出版者・発行元
- ELSEVIER SCIENCE BV
Interaction cross sections (sigma(1)) for Me isotopes from the stability line to the vicinity of the neutron drip line have been measured at around 240 MeV/nucleon using BigRIPS at RIBF, RIKEN, The sigma(1) for Ne27-32 in every case exceed the systematic mass-number dependence of sigma(1) for stable nuclei, which can be explained by considering the nuclear deformation. In particular the sigma(1) for Ne-29 and Ne-31 are significantly greater than those of their neighboring nuclides. These enhancements of sigma(1) for Ne-29 and Ne-31 cannot be explained by a single-particle model calculation under the assumption that the valence neutron of Ne-29 (Ne-31) occupies the 0d(3/2) (0f(7/2)) orbital, as expected from the standard spherical shell ordering. The present data suggest an s dominant halo structure of Ne-29 and s- or p-orbital halo in Ne-31. (C) 2011 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.physletb.2011.12.028
- ISSN : 0370-2693
- eISSN : 1873-2445
- Web of Science ID : WOS:000300134500005