dorsal/arxiv
View SchemaQuadrupole-quadrupole interaction calculations which include N=2 mixing
| Authors | M. S. Fayache, L. Zamick, Y. Y. Sharon |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9609045 |
| URL | https://arxiv.org/abs/nucl-th/9609045 |
| DOI | 10.1103/PhysRevC.55.2389 |
| Journal | Phys.Rev.C55:2389-2394,1997 |
Abstract
We carry out a study of the study of the $Q \cdot Q$ interaction in a model space which consists of several nucleons in an open shell and all $2 \hbar \omega$ excitations. This interaction is $ -t (X_o/2) Q \cdot Q$, where for t=1 we get the `accepted strength'. In the $0p$ space, the spectrum would scale with $t$. In this space, the $2^+_1$ and $2^+_2$ states of $^{10}$Be are degenerate, as are the [330] and [411] sets of $J=0^+, 1^+$ and $2^+$ triplets. When $2 \hbar \omega$ admixtures are included, the degeneracies are removed. For $t \geq 1.8$ we have new ground state and a new $2_1^+$ state. These are states in which two particles are excited from the $0p$ to the $1s-0d$ shell. There is no mixing of these 2p-2h states with the other states. For these 2p-2h states the occupancy for 0s,0p,1s-0d and 1p-of are 4,4,2 and 0 respectively.
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"abstract": "We carry out a study of the study of the $Q \\cdot Q$ interaction in a model\nspace which consists of several nucleons in an open shell and all $2 \\hbar\n\\omega$ excitations. This interaction is $ -t (X_o/2) Q \\cdot Q$, where for t=1\nwe get the `accepted strength\u0027. In the $0p$ space, the spectrum would scale\nwith $t$. In this space, the $2^+_1$ and $2^+_2$ states of $^{10}$Be are\ndegenerate, as are the [330] and [411] sets of $J=0^+, 1^+$ and $2^+$ triplets.\nWhen $2 \\hbar \\omega$ admixtures are included, the degeneracies are removed.\nFor $t \\geq 1.8$ we have new ground state and a new $2_1^+$ state. These are\nstates in which two particles are excited from the $0p$ to the $1s-0d$ shell.\nThere is no mixing of these 2p-2h states with the other states. For these 2p-2h\nstates the occupancy for 0s,0p,1s-0d and 1p-of are 4,4,2 and 0 respectively.",
"arxiv_id": "nucl-th/9609045",
"authors": [
"M. S. Fayache",
"L. Zamick",
"Y. Y. Sharon"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.55.2389",
"journal_ref": "Phys.Rev.C55:2389-2394,1997",
"title": "Quadrupole-quadrupole interaction calculations which include N=2 mixing",
"url": "https://arxiv.org/abs/nucl-th/9609045"
},
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