2016年3月25日
Study of 19C by One-Neutron Knockout
EPJ Web of Conferences
- 巻
- 113
- 号
- 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
- 10.1051/epjconf/201611306014
© 2016 Owned by the authors, published by EDP Sciences. The spectroscopic structure of 19C, a prominent one-neutron halo nucleus, has been studied with a 20C secondary beam at 290 MeV/nucleon and a carbon target. Neutron-unbound states populated by the one-neutron knockout reaction were investigated by means of the invariant mass method. The preliminary relative energy spectrum and parallel momentum distribution of the knockout residue, 19C∗, were reconstructed from the measured four momenta of the 18C fragment, neutron, and beam. Three resonances were observed in the spectrum, which correspond to the states at Ex = 0.62(9), 1.42(10), and 2.89(10) MeV. The parallel momentum distributions for the 0.62-MeV and 2.89-MeV states suggest spin-parity assignments of 5/2+ and 1/2-, respectively. The 1.42-MeV state is in line with the reported 5/22+ state.
- リンク情報
- ID情報
-
- DOI : 10.1051/epjconf/201611306014
- ISSN : 2101-6275
- eISSN : 2100-014X
- SCOPUS ID : 84964595306