dorsal/arxiv
View SchemaProton-neutron alignment in the yrast states of $^{66}$Ge and $^{68}$Ge
| Authors | M. Hasegawa, K. Kaneko, T. Mizusaki |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0408062 |
| URL | https://arxiv.org/abs/nucl-th/0408062 |
| DOI | 10.1103/PhysRevC.70.031301 |
| Journal | Phys.Rev. C70 (2004) 031301 |
Abstract
The $^{66}$Ge and $^{68}$Ge nuclei are studied by means of the shell model with the extended $P+QQ$ Hamiltonian, which succeeds in reproducing experimentally observed energy levels, moments of inertia and other properties. The investigation using the reliable wave-functions predicts T=0, J=9 one-proton-one-neutron ($1p1n$) alignment in the $g_{9/2}$ orbit, at high spins ($14_1^+$, $16_1^+$ and $18_1^+$) in these $N \approx Z$ even-even nuclei. It is shown that a series of the even-$J$ positive-parity yrast states (observed up to $26_1^+$ for $^{68}$Ge) consists of the ground-state band and successive three bands with different types of particle alignments (two-neutron, $1p1n$, two-proton-two-neutron) in the $g_{9/2}$ orbit.
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"abstract": "The $^{66}$Ge and $^{68}$Ge nuclei are studied by means of the shell model\nwith the extended $P+QQ$ Hamiltonian, which succeeds in reproducing\nexperimentally observed energy levels, moments of inertia and other properties.\nThe investigation using the reliable wave-functions predicts T=0, J=9\none-proton-one-neutron ($1p1n$) alignment in the $g_{9/2}$ orbit, at high spins\n($14_1^+$, $16_1^+$ and $18_1^+$) in these $N \\approx Z$ even-even nuclei. It\nis shown that a series of the even-$J$ positive-parity yrast states (observed\nup to $26_1^+$ for $^{68}$Ge) consists of the ground-state band and successive\nthree bands with different types of particle alignments (two-neutron, $1p1n$,\ntwo-proton-two-neutron) in the $g_{9/2}$ orbit.",
"arxiv_id": "nucl-th/0408062",
"authors": [
"M. Hasegawa",
"K. Kaneko",
"T. Mizusaki"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.70.031301",
"journal_ref": "Phys.Rev. C70 (2004) 031301",
"title": "Proton-neutron alignment in the yrast states of $^{66}$Ge and $^{68}$Ge",
"url": "https://arxiv.org/abs/nucl-th/0408062"
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