Microscopic approach to collective motion
Identifieur interne : 000079 ( France/Analysis ); précédent : 000078; suivant : 000080Microscopic approach to collective motion
Auteurs : P. Bonche [France] ; E. Chabanat [France] ; B. Q. Chen [États-Unis] ; J. Dobaczewski [Pologne] ; H. Flocard [France] ; B. Gall [France] ; P. H. Heenen [Belgique] ; J. Meyer [France] ; N. Tajima [Japon] ; M. S. Weiss [États-Unis]Source :
- Nuclear Physics, Section A [ 0375-9474 ] ; 1994.
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 194Pb 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 192Hg, 194Hg and 194Pb 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.
Url:
DOI: 10.1016/0375-9474(94)90045-0
Affiliations:
- Belgique, France, Japon, Pologne, États-Unis
- Auvergne-Rhône-Alpes, Rhône-Alpes, Région de Kantō, Vienne (Autriche), Île-de-France
- Gif sur Yvette, Orsay, Tokyo, Vienne (Autriche), Villeurbanne
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ISTEX:78730A0198C46CD9F5F442108B1133FCEE53FCD3Le document en format XML
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Flocard</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Division de Physique Théorique33Unité de recherche des Universités Paris XI et Paris VI, associée au CNRS., I.P.N., 91406 Orsay Cedex</wicri:regionArea><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Orsay</settlement></placeName></affiliation></author><author><name sortKey="Gall, B" sort="Gall, B" uniqKey="Gall B" first="B." last="Gall">B. Gall</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Division de Physique Théorique33Unité de recherche des Universités Paris XI et Paris VI, associée au CNRS., I.P.N., 91406 Orsay Cedex</wicri:regionArea><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Orsay</settlement></placeName></affiliation></author><author><name sortKey="Heenen, P H" sort="Heenen, P H" uniqKey="Heenen P" first="P. H." last="Heenen">P. H. 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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 194Pb 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 192Hg, 194Hg and 194Pb 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.</div></front></TEI><affiliations><list><country><li>Belgique</li><li>France</li><li>Japon</li><li>Pologne</li><li>États-Unis</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Rhône-Alpes</li><li>Région de Kantō</li><li>Vienne (Autriche)</li><li>Île-de-France</li></region><settlement><li>Gif sur Yvette</li><li>Orsay</li><li>Tokyo</li><li>Vienne (Autriche)</li><li>Villeurbanne</li></settlement></list><tree><country name="France"><region name="Île-de-France"><name sortKey="Bonche, P" sort="Bonche, P" uniqKey="Bonche P" first="P." last="Bonche">P. Bonche</name></region><name sortKey="Chabanat, E" sort="Chabanat, E" uniqKey="Chabanat E" first="E." last="Chabanat">E. Chabanat</name><name sortKey="Flocard, H" sort="Flocard, H" uniqKey="Flocard H" first="H." last="Flocard">H. Flocard</name><name sortKey="Gall, B" sort="Gall, B" uniqKey="Gall B" first="B." last="Gall">B. Gall</name><name sortKey="Meyer, J" sort="Meyer, J" uniqKey="Meyer J" first="J." last="Meyer">J. Meyer</name></country><country name="États-Unis"><noRegion><name sortKey="Chen, B Q" sort="Chen, B Q" uniqKey="Chen B" first="B. Q." last="Chen">B. Q. Chen</name></noRegion><name sortKey="Weiss, M S" sort="Weiss, M S" uniqKey="Weiss M" first="M. S." last="Weiss">M. S. Weiss</name></country><country name="Pologne"><noRegion><name sortKey="Dobaczewski, J" sort="Dobaczewski, J" uniqKey="Dobaczewski J" first="J." last="Dobaczewski">J. Dobaczewski</name></noRegion></country><country name="Belgique"><region name="Vienne (Autriche)"><name sortKey="Heenen, P H" sort="Heenen, P H" uniqKey="Heenen P" first="P. H." last="Heenen">P. H. Heenen</name></region></country><country name="Japon"><region name="Région de Kantō"><name sortKey="Tajima, N" sort="Tajima, N" uniqKey="Tajima N" first="N." last="Tajima">N. 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