Coulomb excitation of 26Ne

D. Beaumel, J. Gibelin, T. Motobayashi, N. Aoi, H. Baba, Y. Blumenfeld, Z. Elekes, S. Fortier, N. Frascaria, N. Fukuda, T. Gomi, K. Ishikawa, Y. Kondo, T. Kubo, V. Lima, T. Nakamura, A. Saito, Y. Satou, E. Takeshita, S. TakeuchiT. Teranishi, Y. Togano, A. M. Vinodkumar, Y. Yanagisawa, K. Yoshida

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Coulomb excitation of the exotic neutron-rich nucleus 26Ne on a 208Pb target was measured at 58 A.MeV in order to search for low-lying E1 strength above the neutron emission threshold. Data were also taken on an Al target to estimate the nuclear contribution. The radioactive beam was produced by fragmentation of a 95 A.MeV Ar beam delivered by the RIKEN Research Facility. The set-up included a NaI gamma-ray array, a charged fragment hodoscope and a neutron wall. Using the invariant mass method in the 25Ne+n channel, we observe a sizable amount of E1 strength between 6 and 10 MeV excitation energy. By performing a multipole decomposition of the differential cross-section, a reduced dipole transition probability of B(E1)=0.49±0.16 e2fm2 is deduced. For the first time, the decay pattern of low-lying strength in a neutron-rich nucleus is measured.

本文言語英語
ホスト出版物のタイトルTOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
ページ192-198
ページ数7
DOI
出版ステータス出版済み - 2007
外部発表はい
イベントTOURS SYMPOSIUM ON NUCLEAR PHYSICS VI - Tours, フランス
継続期間: 9 5 20069 8 2006

出版物シリーズ

名前AIP Conference Proceedings
891
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

その他

その他TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
国/地域フランス
CityTours
Period9/5/069/8/06

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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