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Two-neutron correlations in 6He in a Coulomb breakup reaction

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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
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)

Submitter: 加藤 幾芳

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