Theoretical research on proton halos in exotic nuclei

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Dong-Dong Ni and Zhong-Zhou Ren. Theoretical research on proton halos in exotic nuclei[J]. Chinese Physics C, 2017, 41(11): 114104. doi: 10.1088/1674-1137/41/11/114104
Dong-Dong Ni and Zhong-Zhou Ren. Theoretical research on proton halos in exotic nuclei[J]. Chinese Physics C, 2017, 41(11): 114104.  doi: 10.1088/1674-1137/41/11/114104 shu
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Received: 2017-07-11
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    Supported by Science and Technology Development Fund of Macau (007/2016/A1, 039/2013/A2), National Natural Science Foundation of China (11535004, 11035001, 11375086, 11105079, 10735010, 10975072, 11175085, 11235001), National Major State Basic Research and Development of China (2016YFE0129300) and Research Fund of Doctoral Point (RFDP) (20100091110028)

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Theoretical research on proton halos in exotic nuclei

    Corresponding author: Dong-Dong Ni,
    Corresponding author: Zhong-Zhou Ren,
  • 1.  Space Science Institute, Macau University of Science and Technology, Macao, China
  • 2. Department of Physics, Institute of Acoustics, Nanjing University, Nanjing 210093, China
  • 3. School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
  • 4. Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China
Fund Project:  Supported by Science and Technology Development Fund of Macau (007/2016/A1, 039/2013/A2), National Natural Science Foundation of China (11535004, 11035001, 11375086, 11105079, 10735010, 10975072, 11175085, 11235001), National Major State Basic Research and Development of China (2016YFE0129300) and Research Fund of Doctoral Point (RFDP) (20100091110028)

Abstract: Very neutron-deficient nuclei are investigated with Woods-Saxon potentials, especially the newly measured A=2Z-1 nucleus 65As[X.L. Tu et al., Phys. Rev. Lett. 106, 112501 (2011)], where the experimental proton separation energy is obtained as -90(85) keV for the first time. Careful consideration is given to quasibound protons with outgoing Coulomb wave boundary conditions. The observed proton halos in the first excited state of 17F and in the ground states of 26,27,28P are reproduced well, and predictions of proton halos are made for the ground states of 56,57Cu and 65As. The sensitivity of the results to the proton separation energy is discussed in detail, together with the effect of the l=1 centrifugal barrier on proton halos.

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