Core Excitation in Light Exotic Nuclear Structure&mdash;&mdash;Taking <sup>11</sup>Be for Example

LOU Jianling; CHEN Jie; PANG Danyang; ZHANG Yun; YE Yanlin

doi:10.11804/NuclPhysRev.34.02.129

It was found that many light exotic nuclei have the core-excitation components. In this paper, taking one-neutron halo nucleus ¹¹Be for example, the experimental and theoretical research progress, as well as the influences on the direct nuclear reaction differential cross sections of this exotic component were reviewed. The 1n removal, ¹¹Be(p, d) and ¹⁰Be(d, p) transfer reactions are typical experimental methods to investigate this component. The Faddeev AGS, the XDWBA, and the XCDCC methods are developed to include this constituent in various theoretical models. With the core-excitation component, the calculated results can more reasonably describe the elastic scattering and breakup differential cross sections of ¹¹Be impinging on various targets. Comparing the full XCDCC calculation with that omitting core-excitation effect, we found that this component mainly affects the elastic scattering differential cross sections at large center-of-mass angles, and the (p, d) transfer reaction angular distributions at small center-of-mass angles. In addition, its effect is non-negligible for the breakup reaction within the excitation energy interval of E_x = 0:5~3 MeV, and is remarkable for E_x =3 5:5 MeV.

Core Excitation in Light Exotic Nuclear Structure——Taking ¹¹Be for Example

1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China;

2. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China

Funds: National Basic Research Program of China(973 Program)(2013CB834402); National Natural Science Foundation of China(11275001, 11275011, 11275018)

Received Date: 2016-08-14

Rev Recd Date: 2016-09-30

Publish Date: 2017-06-20

Key words:

Abstract: It was found that many light exotic nuclei have the core-excitation components. In this paper, taking one-neutron halo nucleus ¹¹Be for example, the experimental and theoretical research progress, as well as the influences on the direct nuclear reaction differential cross sections of this exotic component were reviewed. The 1n removal, ¹¹Be(p, d) and ¹⁰Be(d, p) transfer reactions are typical experimental methods to investigate this component. The Faddeev AGS, the XDWBA, and the XCDCC methods are developed to include this constituent in various theoretical models. With the core-excitation component, the calculated results can more reasonably describe the elastic scattering and breakup differential cross sections of ¹¹Be impinging on various targets. Comparing the full XCDCC calculation with that omitting core-excitation effect, we found that this component mainly affects the elastic scattering differential cross sections at large center-of-mass angles, and the (p, d) transfer reaction angular distributions at small center-of-mass angles. In addition, its effect is non-negligible for the breakup reaction within the excitation energy interval of E_x = 0:5~3 MeV, and is remarkable for E_x =3 5:5 MeV.

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Core Excitation in Light Exotic Nuclear Structure——Taking ¹¹Be for Example

doi: 10.11804/NuclPhysRev.34.02.129

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通讯作者: 陈斌, bchen63@163.com

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Core Excitation in Light Exotic Nuclear Structure——Taking ¹¹Be for Example

doi: 10.11804/NuclPhysRev.34.02.129

1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China;

2. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China

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Core Excitation in Light Exotic Nuclear Structure——Taking 11Be for Example

doi: 10.11804/NuclPhysRev.34.02.129

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

Article Metrics

Proportional views

Core Excitation in Light Exotic Nuclear Structure——Taking 11Be for Example

doi: 10.11804/NuclPhysRev.34.02.129

1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China; 2. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China

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Core Excitation in Light Exotic Nuclear Structure——Taking ¹¹Be for Example

Core Excitation in Light Exotic Nuclear Structure——Taking ¹¹Be for Example

1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China;

2. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China