dorsal/arxiv
View SchemaOn the angular momentum dependence of nuclear level densities
| Authors | B. K. Agrawal, A. Ansari |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9312014 |
| URL | https://arxiv.org/abs/nucl-th/9312014 |
| DOI | 10.1016/0375-9474(94)90256-9 |
| Journal | Nucl.Phys. A576 (1994) 189-204 |
Abstract
Angular momentum dependence of nuclear level densities at finite temperatures are investigated in the static path approximation(SPA) to the partition function using a cranked quadrupole interaction Hamiltonian in the following three schemes: (i) cranking about x-axis, (ii) cranking about z-axis and (iii) cranking about z-axis but correcting for the orientation fluctuation of the axis. Performing numerical computations for an $sd$ and a $pf$ shell nucleus, we find that the x-axis cranking results are satisfactory for reasonably heavy nuclei and this offers a computationally faster method to include the angular momentum dependence at high temperatures in the SPA approach. It also appears that at high spins inclusion of orientation fluctuation correction would be important.
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"abstract": "Angular momentum dependence of nuclear level densities at finite temperatures\nare investigated in the static path approximation(SPA) to the partition\nfunction using a cranked quadrupole interaction Hamiltonian in the following\nthree schemes: (i) cranking about x-axis, (ii) cranking about z-axis and (iii)\ncranking about z-axis but correcting for the orientation fluctuation of the\naxis. Performing numerical computations for an $sd$ and a $pf$ shell nucleus,\nwe find that the x-axis cranking results are satisfactory for reasonably heavy\nnuclei and this offers a computationally faster method to include the angular\nmomentum dependence at high temperatures in the SPA approach. It also appears\nthat at high spins inclusion of orientation fluctuation correction would be\nimportant.",
"arxiv_id": "nucl-th/9312014",
"authors": [
"B. K. Agrawal",
"A. Ansari"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/0375-9474(94)90256-9",
"journal_ref": "Nucl.Phys. A576 (1994) 189-204",
"title": "On the angular momentum dependence of nuclear level densities",
"url": "https://arxiv.org/abs/nucl-th/9312014"
},
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