dorsal/arxiv
View SchemaMicroscopic approach to collective motion
| Authors | P. Bonche, E. Chabanat, B. Q. Chen, J. Dobaczewski, H. Flocard, B. Gall, P. H. Heenen, J. Meyer, N. Tajima, M. S. Weiss |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9309018 |
| URL | https://arxiv.org/abs/nucl-th/9309018 |
| DOI | 10.1016/0375-9474(94)90045-0 |
Abstract
An overview of a microscopic framework based on the Hartree-Fock description of the mean field is presented which, starting from an effective interaction allows a description of collective motions. A study of the isotope shifts in the Pb region illustrates the importance of the effective interactions and points to their limitations. Such forces should be improved in order to achieve a better description of nuclei properties especially with the coming availability of exotic beam facilities. The coupling of collective quadrupole and octupole degrees of freedom in $^{194}$Pb is analyzed within the Generator Coordinate Method, which represents a step beyond the simple mean-field approximation. As a last example, we present a study of nuclear rotations. First we discuss results on superdeformed rotating bands in $^{192}$Hg, $^{194}$Hg and $^{194}$Pb obtained without including a treatment of pairing correlations. Preliminary calculations are also presented with these correlations included as well as an approximate projection on nucleon number. Email contact: paul@amoco.saclay.cea.fr
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"abstract": "An overview of a microscopic framework based on the Hartree-Fock description\nof the mean field is presented which, starting from an effective interaction\nallows a description of collective motions. A study of the isotope shifts in\nthe Pb region illustrates the importance of the effective interactions and\npoints to their limitations. Such forces should be improved in order to achieve\na better description of nuclei properties especially with the coming\navailability of exotic beam facilities. The coupling of collective quadrupole\nand octupole degrees of freedom in $^{194}$Pb is analyzed within the Generator\nCoordinate Method, which represents a step beyond the simple mean-field\napproximation. As a last example, we present a study of nuclear rotations.\nFirst we discuss results on superdeformed rotating bands in $^{192}$Hg,\n$^{194}$Hg and $^{194}$Pb obtained without including a treatment of pairing\ncorrelations. Preliminary calculations are also presented with these\ncorrelations included as well as an approximate projection on nucleon number.\nEmail contact: paul@amoco.saclay.cea.fr",
"arxiv_id": "nucl-th/9309018",
"authors": [
"P. Bonche",
"E. Chabanat",
"B. Q. Chen",
"J. Dobaczewski",
"H. Flocard",
"B. Gall",
"P. H. Heenen",
"J. Meyer",
"N. Tajima",
"M. S. Weiss"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/0375-9474(94)90045-0",
"title": "Microscopic approach to collective motion",
"url": "https://arxiv.org/abs/nucl-th/9309018"
},
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