dorsal/arxiv
View SchemaProton-neutron interactions in N \approx Z nuclei
| Authors | K. Kaneko, M. Hasegawa |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9906001 |
| URL | https://arxiv.org/abs/nucl-th/9906001 |
| DOI | 10.1103/PhysRevC.60.024301 |
Abstract
Proton-neutron (p-n) interactions and its various aspects in $N\approx Z$ nuclei of $g_{9/2}$- and $f_{7/2}$ subshell are studied using a schematic model interaction with four force parameters proposed recently. It is shown that the model interaction well reproduces observed physical quantities: the double differences of binding energies, symmetry energy, Wigner energy, odd-even mass difference and separation energy, which testifies the reliability of the model interaction and its p-n interactions. First of all, the double differences of binding energies are used for probing the p-n interactions. The analysis reveals different contributions of the isoscalar and isovector p-n pairing interactions to two types of double difference of binding energies, and also indicates the importance of a unique form of isoscalar p-n pairing force with all $J$ components. Next, it is shown that this p-n force is closely related to the symmetry energy and the Wigner energy. Other calculations demonstrate significant roles of p-n interactions in the odd-even mass difference and in the separation energy at $N=Z$.
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"abstract": "Proton-neutron (p-n) interactions and its various aspects in $N\\approx Z$\nnuclei of $g_{9/2}$- and $f_{7/2}$ subshell are studied using a schematic model\ninteraction with four force parameters proposed recently. It is shown that the\nmodel interaction well reproduces observed physical quantities: the double\ndifferences of binding energies, symmetry energy, Wigner energy, odd-even mass\ndifference and separation energy, which testifies the reliability of the model\ninteraction and its p-n interactions.\n First of all, the double differences of binding energies are used for probing\nthe p-n interactions. The analysis reveals different contributions of the\nisoscalar and isovector p-n pairing interactions to two types of double\ndifference of binding energies, and also indicates the importance of a unique\nform of isoscalar p-n pairing force with all $J$ components. Next, it is shown\nthat this p-n force is closely related to the symmetry energy and the Wigner\nenergy. Other calculations demonstrate significant roles of p-n interactions in\nthe odd-even mass difference and in the separation energy at $N=Z$.",
"arxiv_id": "nucl-th/9906001",
"authors": [
"K. Kaneko",
"M. Hasegawa"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.60.024301",
"title": "Proton-neutron interactions in N \\approx Z nuclei",
"url": "https://arxiv.org/abs/nucl-th/9906001"
},
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