Quantitative conditions for the formation of p-wave neutron halos

  • With the experimental binding energies and configurations, the root-mean-square radii of p-wave valence neutron distributions for nuclei up to the second p-shell have been calculated in the framework of the single-particle potential model. By analyzing the relations between the radii and the binding energies, the scaling laws of p-wave valence neutron distributions are obtained. The quantitative conditions for the formation of p-wave neutron halos are deduced from these scaling laws. Based on the investigation on the probability of finding the valence nucleon outside the range of the interaction potential, a 2p3/2 halo state in 47S is anticipated for the first time. These obtained results might provide reference for searching for p-wave neutron halos in nuclei up to the second p-shell.
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GUO Yan-Qing and SONG Jie. Quantitative conditions for the formation of p-wave neutron halos[J]. Chinese Physics C, 2011, 35(2): 158-162. doi: 10.1088/1674-1137/35/2/010
GUO Yan-Qing and SONG Jie. Quantitative conditions for the formation of p-wave neutron halos[J]. Chinese Physics C, 2011, 35(2): 158-162.  doi: 10.1088/1674-1137/35/2/010 shu
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Received: 2010-05-02
Revised: 2010-07-13
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Quantitative conditions for the formation of p-wave neutron halos

Abstract: With the experimental binding energies and configurations, the root-mean-square radii of p-wave valence neutron distributions for nuclei up to the second p-shell have been calculated in the framework of the single-particle potential model. By analyzing the relations between the radii and the binding energies, the scaling laws of p-wave valence neutron distributions are obtained. The quantitative conditions for the formation of p-wave neutron halos are deduced from these scaling laws. Based on the investigation on the probability of finding the valence nucleon outside the range of the interaction potential, a 2p3/2 halo state in 47S is anticipated for the first time. These obtained results might provide reference for searching for p-wave neutron halos in nuclei up to the second p-shell.

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