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Journal articles
Microscopic approach to collective motion
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.
Cited literature [62 references]
https://hal-cea.archives-ouvertes.fr/cea-02928290
Contributor : Bruno Savelli Connect in order to contact the contributor
Submitted on : Wednesday, September 2, 2020 - 2:00:09 PM
Last modification on : Friday, September 10, 2021 - 1:50:21 PM
Long-term archiving on: : Wednesday, December 2, 2020 - 4:28:47 PM
Contributor : Bruno Savelli Connect in order to contact the contributor
Submitted on : Wednesday, September 2, 2020 - 2:00:09 PM
Last modification on : Friday, September 10, 2021 - 1:50:21 PM
Long-term archiving on: : Wednesday, December 2, 2020 - 4:28:47 PM
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