2009年11月
Decay pattern of pygmy states observed in neutron-rich 26Ne
International Journal of Modern Physics E
- 巻
- 18
- 号
- 10
- 開始ページ
- 2050
- 終了ページ
- 2055
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- DOI
- 10.1142/S0218301309014275
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. The radioactive beam was produced by fragmentation of a 95 A.MeV Ar beam delivered by the RIKEN Accelerator Research Facility. The set-up included a NaI(Tl) gamma-ray array, a charged fragment hodoscope and a neutron wall. Using the invariant mass method in the 25Ne+n channel, we observe by multipole decomposition a sizable amount of E1 strength between 6 and 10 MeV excitation energy. For the first time, the decay pattern of low-lying strength in a neutron-rich nucleus is measured. © 2009 World Scientific Publishing Company.
- リンク情報
- ID情報
-
- DOI : 10.1142/S0218301309014275
- ISSN : 0218-3013
- ORCIDのPut Code : 27019174
- SCOPUS ID : 73149119811
- Web of Science ID : WOS:000272695700028