Neutron halos in the excited states for N=127 isotones

SUN Qin; GUO Jian-You

doi:10.1088/1674-1137/33/S1/041

Chinese Physics C> 2009, Vol. 33> Issue(S1) : 130-133 DOI: 10.1088/1674-1137/33/S1/041

Neutron halos in the excited states for N=127 isotones

SUN Qin ^, ,
GUO Jian-You

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Abstract：
Properties of the ground states and the excited states of N=127 isotones are investigated by using the nonlinear relativistic mean field theory with the interactions PK1. By analyzing the rms of proton and neutron, the single particle energies of valence nucleon and the density distributions of neutron, proton and the last neutron, it can be found that there exists a neutron halo in the excited states of 3d5/2, 4s1/2 and 3d3/2 in ²⁰⁹Pb. It is also predicted that there exists a neutron halo in the excited states of 3d5/2, 4s1/2 and 3d3/2 in ²⁰⁷Hg, ²⁰⁸Tl, ²¹⁰Bi and ²¹¹Po.

References

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. Tanihata I, Hamagaki H, Hashimoto O et al. Phys. Rev.Lett., 1985, 55: 26762. LIU Z H. Chin. Phys. Lett., 2001, 18: 10243. Serot B D, Walecka J D. Adv. Nucl. Phys., 1986, 16: 14. Reinhard P G. Rep. Prog. Phys., 1989, 52: 4395. Ring P. Prog. Part. Nucl. Phys., 1996, 37: 1936. MENG J. Nucl. Phys. A, 1998, 635: 37. LONG W H, MENG J. Giai N V. Phys. Rev. C, 2004, 69:034319

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SUN Qin and GUO Jian-You. Neutron halos in the excited states for N=127 isotones[J]. Chinese Physics C, 2009, 33(S1): 130-133. doi: 10.1088/1674-1137/33/S1/041

SUN Qin and GUO Jian-You. Neutron halos in the excited states for N=127 isotones[J]. Chinese Physics C, 2009, 33(S1): 130-133. doi: 10.1088/1674-1137/33/S1/041 shu

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Received: 2008-10-23
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Neutron halos in the excited states for N=127 isotones

SUN Qin ^,
GUO Jian-You

Corresponding author: SUN Qin,

Received Date: 2008-10-23
Accepted Date: 1900-01-01
Available Online: 2009-01-10

Abstract: Properties of the ground states and the excited states of N=127 isotones are investigated by using the nonlinear relativistic mean field theory with the interactions PK1. By analyzing the rms of proton and neutron, the single particle energies of valence nucleon and the density distributions of neutron, proton and the last neutron, it can be found that there exists a neutron halo in the excited states of 3d5/2, 4s1/2 and 3d3/2 in ²⁰⁹Pb. It is also predicted that there exists a neutron halo in the excited states of 3d5/2, 4s1/2 and 3d3/2 in ²⁰⁷Hg, ²⁰⁸Tl, ²¹⁰Bi and ²¹¹Po.