An Alternative Understanding of Mass Formulas in Terms of Nuclear Structure(Nuclear Physics)
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概要
- 論文の詳細を見る
A typical form of mass formula is re-explained in terms of nuclear structure. For N≈Z nuclei, we propose to start with the shell model picture and to consider the T=0 2n-2p (α-like) correlations as the fundamental concept, instead of the symmetry energy. Subsequently, the symmetry energy is described on the basis of the α-like superfluidity caused by the T=0 2n-2p correlations, in parallel with the pairing energy described on the basis of the pairing superfluidity. This re-explanation gives useful insight for understanding the nuclear mass formula. The origin of the Wigner energy is also explained in an interacting boson model for the Cooper pairs in the α-like superfluid vacuum. Adding a correction term due to the T=0 2n-2p correlations, which determines the T=0 base level for nuclear masses, can improve the mass formulas in practice.
- 理論物理学刊行会の論文
- 2005-06-25
著者
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Kaneko Kazunari
Department Of Pediatrics Juntendo University School Of Medicine
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Hasegawa Munetake
Laboratory Of Physics Fukuoka Dental College
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