dorsal/arxiv
View SchemaOrbital and Spin Magnetic Dipole Strength in a shell model calculation with $\Delta N$=$2$ excitations: $^8\mbox{Be}$
| Authors | M. S. Fayache, L. Zamick |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9406006 |
| URL | https://arxiv.org/abs/nucl-th/9406006 |
| DOI | 10.1016/0370-2693(94)90795-1 |
| Journal | Phys.Lett. B338 (1994) 421-425 |
Abstract
The magnetic dipole strength and energy-weighted strength distribution is calculated in $^8\mbox{Be}$, as well as the separate orbit and spin parts. All $\Delta N$=$2$ excitations over and above (and including) the configuration $0s^4$$0p^4$ are included. The interaction has a central, two-body spin-orbit and a tensor part. The energy- independent and energy-weighted {\underline orbital} strength distribution is remarkably insensitive to the presence or absence of the spin-orbit or tensor interaction -not so the spin strength. The energy-weighted strength distribution can be divided into a low enegy and a high energy part. The high energy orbital part is somewhat less but close to the low energy part, in fair agreement with a prediction that they be equal by de Guerra and Zamick and by Nojarov. There is a wide plateau separating the low energy part from the high energy part.
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"abstract": "The magnetic dipole strength and energy-weighted strength distribution is\ncalculated in $^8\\mbox{Be}$, as well as the separate orbit and spin parts. All\n$\\Delta N$=$2$ excitations over and above (and including) the configuration\n$0s^4$$0p^4$ are included. The interaction has a central, two-body spin-orbit\nand a tensor part. The energy- independent and energy-weighted {\\underline\norbital} strength distribution is remarkably insensitive to the presence or\nabsence of the spin-orbit or tensor interaction -not so the spin strength. The\nenergy-weighted strength distribution can be divided into a low enegy and a\nhigh energy part. The high energy orbital part is somewhat less but close to\nthe low energy part, in fair agreement with a prediction that they be equal by\nde Guerra and Zamick and by Nojarov. There is a wide plateau separating the low\nenergy part from the high energy part.",
"arxiv_id": "nucl-th/9406006",
"authors": [
"M. S. Fayache",
"L. Zamick"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/0370-2693(94)90795-1",
"journal_ref": "Phys.Lett. B338 (1994) 421-425",
"title": "Orbital and Spin Magnetic Dipole Strength in a shell model calculation with $\\Delta N$=$2$ excitations: $^8\\mbox{Be}$",
"url": "https://arxiv.org/abs/nucl-th/9406006"
},
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