Physics Letters B (Jun 2018)
A new measurement of the intruder configuration in 12Be
- J. Chen,
- J.L. Lou,
- Y.L. Ye,
- Z.H. Li,
- D.Y. Pang,
- C.X. Yuan,
- Y.C. Ge,
- Q.T. Li,
- H. Hua,
- D.X. Jiang,
- X.F. Yang,
- F.R. Xu,
- J.C. Pei,
- J. Li,
- W. Jiang,
- Y.L. Sun,
- H.L. Zang,
- Y. Zhang,
- N. Aoi,
- E. Ideguchi,
- H.J. Ong,
- J. Lee,
- J. Wu,
- H.N. Liu,
- C. Wen,
- Y. Ayyad,
- K. Hatanaka,
- D.T. Tran,
- T. Yamamoto,
- M. Tanaka,
- T. Suzuki
Affiliations
- J. Chen
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- J.L. Lou
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China; Corresponding author.
- Y.L. Ye
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Z.H. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- D.Y. Pang
- School of Physics and Nuclear Energy Engineering, Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
- C.X. Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
- Y.C. Ge
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Q.T. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- H. Hua
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- D.X. Jiang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- X.F. Yang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- F.R. Xu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- J.C. Pei
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- J. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- W. Jiang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Y.L. Sun
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- H.L. Zang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Y. Zhang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- N. Aoi
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- E. Ideguchi
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- H.J. Ong
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- J. Lee
- RIKEN (Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- J. Wu
- RIKEN (Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- H.N. Liu
- RIKEN (Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- C. Wen
- RIKEN (Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Y. Ayyad
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- K. Hatanaka
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- D.T. Tran
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- T. Yamamoto
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- M. Tanaka
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- T. Suzuki
- Research Centre for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
- Journal volume & issue
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Vol. 781
pp. 412 – 416
Abstract
A new 11Be(d,p)12Be transfer reaction experiment was carried out in inverse kinematics at 26.9A MeV, with special efforts devoted to the determination of the deuteron target thickness and of the required optical potentials from the present elastic scattering data. In addition a direct measurement of the cross section for the 02+ state was realized by applying an isomer-tagging technique. The s-wave spectroscopic factors of 0.20−0.04+0.03 and 0.41−0.11+0.11 were extracted for the 01+ and 02+ states, respectively, in 12Be. Using the ratio of these spectroscopic factors, together with the previously reported results for the p-wave components, the single-particle component intensities in the bound 0+ states of 12Be were deduced, allowing a direct comparison with the theoretical predictions. It is evidenced that the ground-state configuration of 12Be is dominated by the d-wave intruder, exhibiting a dramatic evolution of the intruding mechanism from 11Be to 12Be, with a persistence of the N=8 magic number broken. Keywords: Transfer reaction, 12Be, Intruder configuration
