Abstract
We study the prolate-shape predominance of the nuclear ground-state deformation by calculating the masses of more than 2000 even-even nuclei using the Strutinsky method, modified by Kruppa, and improved by us. The influences of the surface thickness of the single-particle potentials, the strength of the spin-orbit potential, and the pairing correlations are investigated by varying the parameters of the Woods-Saxon potential and the pairing interaction. The strong interference between the effects of the surface thickness and the spin-orbit potential is confirmed to persist for six sets of Woods-Saxon potential parameters. The observed behavior of the ratios of prolate, oblate, and spherical nuclei versus potential parameters are rather different in different mass regions. The ratio of spherical nuclei is found to increase for weakly bound unstable nuclei. Differences from the results of calculations performed using the Nilsson potential are described in detail.
| Original language | English |
|---|---|
| Article number | 064323 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 86 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 27 2012 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Cite this
Nuclear prolate-shape dominance with the Woods-Saxon potential. / Takahara, Satoshi; Tajima, Naoki; Shimizu, Yoshifumi R.
In: Physical Review C - Nuclear Physics, Vol. 86, No. 6, 064323, 27.12.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nuclear prolate-shape dominance with the Woods-Saxon potential
AU - Takahara, Satoshi
AU - Tajima, Naoki
AU - Shimizu, Yoshifumi R.
PY - 2012/12/27
Y1 - 2012/12/27
N2 - We study the prolate-shape predominance of the nuclear ground-state deformation by calculating the masses of more than 2000 even-even nuclei using the Strutinsky method, modified by Kruppa, and improved by us. The influences of the surface thickness of the single-particle potentials, the strength of the spin-orbit potential, and the pairing correlations are investigated by varying the parameters of the Woods-Saxon potential and the pairing interaction. The strong interference between the effects of the surface thickness and the spin-orbit potential is confirmed to persist for six sets of Woods-Saxon potential parameters. The observed behavior of the ratios of prolate, oblate, and spherical nuclei versus potential parameters are rather different in different mass regions. The ratio of spherical nuclei is found to increase for weakly bound unstable nuclei. Differences from the results of calculations performed using the Nilsson potential are described in detail.
AB - We study the prolate-shape predominance of the nuclear ground-state deformation by calculating the masses of more than 2000 even-even nuclei using the Strutinsky method, modified by Kruppa, and improved by us. The influences of the surface thickness of the single-particle potentials, the strength of the spin-orbit potential, and the pairing correlations are investigated by varying the parameters of the Woods-Saxon potential and the pairing interaction. The strong interference between the effects of the surface thickness and the spin-orbit potential is confirmed to persist for six sets of Woods-Saxon potential parameters. The observed behavior of the ratios of prolate, oblate, and spherical nuclei versus potential parameters are rather different in different mass regions. The ratio of spherical nuclei is found to increase for weakly bound unstable nuclei. Differences from the results of calculations performed using the Nilsson potential are described in detail.
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U2 - 10.1103/PhysRevC.86.064323
DO - 10.1103/PhysRevC.86.064323
M3 - Article
AN - SCOPUS:84871828528
VL - 86
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 6
M1 - 064323
ER -