dorsal/arxiv
View SchemaAn alternative understanding of mass formulas in terms of nuclear structure
| Authors | M. Hasegawa, K. Kaneko |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0503006 |
| URL | https://arxiv.org/abs/nucl-th/0503006 |
| DOI | 10.1143/PTP.113.1215 |
| Journal | Prog.Theor.Phys. 113 (2005) 1215-1237 |
Abstract
A typical form of mass formula is re-explained in terms of nuclear structure. For $ N \approx Z $ nuclei, we propose to start with the shell model picture and to consider the T=0 $2n-2p$ ($\alpha$-like) correlations as the fundamental concept, instead of the symmetry energy. Subsequently, the symmetry energy is described on the basis of the $\alpha$-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 $\alpha$-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.
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"abstract": "A typical form of mass formula is re-explained in terms of nuclear structure.\n For $ N \\approx Z $ nuclei, we propose to start with the shell model picture\nand to consider the T=0 $2n-2p$ ($\\alpha$-like) correlations as the fundamental\nconcept, instead of the symmetry energy.\n Subsequently, the symmetry energy is described on the basis of the\n$\\alpha$-like superfluidity caused by the T=0 $2n-2p$ correlations, in parallel\nwith the pairing energy described on the basis of the pairing superfluidity.\nThis re-explanation gives useful insight for understanding the nuclear mass\nformula. The origin of the Wigner energy is also explained in an interacting\nboson model for the Cooper pairs in the $\\alpha$-like superfluid vacuum. Adding\na correction term due to the T=0 $2n-2p$ correlations, which determines the T=0\nbase level for nuclear masses, can improve the mass formulas in practice.",
"arxiv_id": "nucl-th/0503006",
"authors": [
"M. Hasegawa",
"K. Kaneko"
],
"categories": [
"nucl-th"
],
"doi": "10.1143/PTP.113.1215",
"journal_ref": "Prog.Theor.Phys. 113 (2005) 1215-1237",
"title": "An alternative understanding of mass formulas in terms of nuclear structure",
"url": "https://arxiv.org/abs/nucl-th/0503006"
},
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