| Автор | D Bonatsos |
| Автор | L D Skouras |
| Автор | P Van Isacker |
| Автор | M A Nagarajan |
| Дата выпуска | 1991-12-01 |
| dc.description | The democratic mapping is used for the calculation of low-lying states of nuclei in the sd and fp shells. In addition to demonstrating the applicability of the method in realistic cases where many non-degenerate levels are present, the method allows for the ranking of the various bosons according to their importance as building blocks of low-lying states. It is proven that the s and d bosons are the most important building blocks, followed by the d' and g bosons. Thus one of the basic assumptions of the interacting boson model (IBM) is proven to be correct. Very good agreement between the boson calculation and the shell-model results is obtained for A=20 nuclei when 12 bosons are taken into account, while an even larger number of bosons is required to reproduce the low-lying states of the A=44 nuclei. In order to obtain equally good results with a smaller number of bosons one needs to introduce effective boson Hamiltonians which correspond to truncated fermion spaces. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | An application of the democratic mapping to the sd and fp shells |
| Тип | paper |
| DOI | 10.1088/0954-3899/17/12/004 |
| Electronic ISSN | 1361-6471 |
| Print ISSN | 0954-3899 |
| Журнал | Journal of Physics G: Nuclear and Particle Physics |
| Том | 17 |
| Первая страница | 1803 |
| Последняя страница | 1821 |
| Аффилиация | D Bonatsos; Inst. of Nucl. Phys., NCSR Demokritos, Attiki, Greece |
| Аффилиация | L D Skouras; Inst. of Nucl. Phys., NCSR Demokritos, Attiki, Greece |
| Аффилиация | P Van Isacker; Inst. of Nucl. Phys., NCSR Demokritos, Attiki, Greece |
| Аффилиация | M A Nagarajan; Inst. of Nucl. Phys., NCSR Demokritos, Attiki, Greece |
| Выпуск | 12 |
