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Two-neutron correlations in 6He in a Coulomb breakup reaction
| Title: | Two-neutron correlations in 6He in a Coulomb breakup reaction |
| Authors: | Kikuchi, Yuma Browse this author | | Katō, Kiyoshi Browse this author →KAKEN DB | | Myo, Takayuki Browse this author | | Takashina, Masaaki Browse this author | | Ikeda, Kiyomi Browse this author |
| Issue Date: | 2010 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review C |
| Volume: | 81 |
| Issue: | 4 |
| Start Page: | 044308-1 |
| End Page: | 044308-9 |
| Publisher DOI: | 10.1103/PhysRevC.81.044308 |
| Abstract: | We investigate the three-body Coulomb breakup of a two-neutron halo nucleus, 6He. Based on the α+n+n model, the three-body scattering states of 6He are described by using the combined methods of the complex scaling and the Lippmann-Schwinger equation. We calculate the breakup cross section, the two-dimensional energy distributions, and the invariant mass spectra for the E1 transition of 6He. We discuss the relations between the structures in these strengths and the n-n and α-n correlations of 6He. It is found that the 5He resonance in the final states contributes to make a low-energy enhancement of the strength. The n-n final-state interaction also contributes to enhance the strength globally. However, the ground-state correlations of 6He, such as a dineutron, are difficult to recognize in the strength because of the dominant effect of the final-state interaction. |
| Rights: | © 2010 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/46852 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 加藤 幾芳
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