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《中国物理C》(英文)编辑部
2024年10月30日

Study of Fusion Mechanism of Halo Nuclear 11Be+208Pb by Applying QMD Model

  • We have studied the fusion reaction for 11Be+208Pb near barrier by applying QMD model, and find taht in the fusion reaction induced by halo nuclei there simultaneously exist two mechanisms competing with each other. On one hand,11Be is a weakly bound nuclear system and is easily broke up caused by the interaction with target, when it approaches to target, so the fusion cross section is suppressed. On the other and, several neutrons of 11Be transfer into 208Pb and interact with 208Pb to cause the local radius of 208Pb increase and result in an enhancement of fusion cross section. The fusion cross sections calculatd show an enhancement near barrier, and the calculated results agree with the experimental data reasonably well.
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  • [1] Takigawa N,Sagawa H. Phys Lett.,1991,B265:23 2 Takigawa N,Sagawa H. Nucl.Phys.,1992,A538:221c 3 Hussein M S et al. Phys. Rev.,1992 C46:377 4 Hussein M S et al. Nucl. Phys.,1995 A592:27 5 HartnackCetal.Nucl.Phys.,1989 A495:303 6 Toshiki Maruyama et al.Phys. Rev. C, V42:386 7 Hamamoto I, Sagawa H, Zhang X Z. Nucl. Phys.,1999, A648:203
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WANG Ning and LI Zhu-Xia. Study of Fusion Mechanism of Halo Nuclear 11Be+208Pb by Applying QMD Model[J]. Chinese Physics C, 2001, 25(5): 399-404.
WANG Ning and LI Zhu-Xia. Study of Fusion Mechanism of Halo Nuclear 11Be+208Pb by Applying QMD Model[J]. Chinese Physics C, 2001, 25(5): 399-404. shu
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Received: 2000-03-20
Revised: 1900-01-01
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Study of Fusion Mechanism of Halo Nuclear 11Be+208Pb by Applying QMD Model

    Corresponding author: WANG Ning,
  • China Institute of Atomic Energy, Beijing 102413, China2 Physics Department, Northwest University, Xi'an 710069, China3 Center of Nuclear Theory, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China4 Institute of Theoretical Physics, CAS, Beijing 100080, China

Abstract: We have studied the fusion reaction for 11Be+208Pb near barrier by applying QMD model, and find taht in the fusion reaction induced by halo nuclei there simultaneously exist two mechanisms competing with each other. On one hand,11Be is a weakly bound nuclear system and is easily broke up caused by the interaction with target, when it approaches to target, so the fusion cross section is suppressed. On the other and, several neutrons of 11Be transfer into 208Pb and interact with 208Pb to cause the local radius of 208Pb increase and result in an enhancement of fusion cross section. The fusion cross sections calculatd show an enhancement near barrier, and the calculated results agree with the experimental data reasonably well.

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