A Confirmation on the Disappearance of Magic Number N=28 in Neutron-Rich Nuclei with the Relativistic Mean-Field Theory

DING Bin-Gang

Chinese Physics C> 2007, Vol. 31> Issue(7) : 647-650

A Confirmation on the Disappearance of Magic Number N=28 in Neutron-Rich Nuclei with the Relativistic Mean-Field Theory

DING Bin-Gang ^,

College of Science, Huzhou Tearcher's College, Huzhou 313000, China

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Abstract：
A theoretical method for testing shell effect is proposed. In the framework of the relativistic mean-field theory with the consideration of the BCS approach, by calculating the fluctuation of the particle-number, we discover that particle number fluctuations are closely related with the nuclear shell structure. As a consequence, the traditional magic number N=28 disappears in the neutron-rich area near the drip-line.

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DING Bin-Gang. A Confirmation on the Disappearance of Magic Number N=28 in Neutron-Rich Nuclei with the Relativistic Mean-Field Theory[J]. Chinese Physics C, 2007, 31(7): 647-650.

DING Bin-Gang. A Confirmation on the Disappearance of Magic Number N=28 in Neutron-Rich Nuclei with the Relativistic Mean-Field Theory[J]. Chinese Physics C, 2007, 31(7): 647-650. shu

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Received: 2006-11-01
Revised: 2007-01-26

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沈阳化工大学材料科学与工程学院沈阳 110142

A Confirmation on the Disappearance of Magic Number N=28 in Neutron-Rich Nuclei with the Relativistic Mean-Field Theory

DING Bin-Gang ^,

Corresponding author: DING Bin-Gang,

College of Science, Huzhou Tearcher's College, Huzhou 313000, China

Received Date: 2006-11-01
Accepted Date: 2007-01-26
Available Online: 2007-07-05

Abstract: A theoretical method for testing shell effect is proposed. In the framework of the relativistic mean-field theory with the consideration of the BCS approach, by calculating the fluctuation of the particle-number, we discover that particle number fluctuations are closely related with the nuclear shell structure. As a consequence, the traditional magic number N=28 disappears in the neutron-rich area near the drip-line.