تقرير
Application of the quasiparticle random phase approximation in the region of the semi magic nucleus $^{146}_{64} Gd_{82}$
| العنوان: | Application of the quasiparticle random phase approximation in the region of the semi magic nucleus $^{146}_{64} Gd_{82}$ |
|---|---|
| المؤلفون: | Conci, C. |
| المصدر: | Jülich : Kernforschungsanlage Jülich GmbH Zentralbibliothek, Verlag, Spezielle Berichte der Kernforschungsanlage Jülich 241, 101 p., Beig. (1984). |
| بيانات النشر: | Kernforschungsanlage Jülich GmbH Zentralbibliothek, Verlag |
| سنة النشر: | 1984 |
| المجموعة: | Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
| جغرافية الموضوع: | DE |
| الوصف: | The spectroscopic properties of the even-even N=82 isotones with Z=60~68, with special attention to the nucleus $^{146}_{64} Gd_{82}$, have been investigated in the framewerk of the Quasiparticle Randam-Phase Approximation (QRPA). The particle-hole and the particle-particle effective interaction are considered separately. In the QRPA- as well as in the BCS-equation we have used a density-dependent zero-range interaction. For the particle-hole force we have made use of a generalized interaction which includes, in addition to the zero-range terms of the Landau-Migdal force, also explicitly the contributions of the one-pion and one-rho exchange potential. This being the first work where this kind of force is used to describe both eletric and magnetic nuclear properties, it has beennecessary to introduce a new parameterization of the force. To make sure that our parametrization is valid in different regions of the periodic table, we have performed the same kind of calculations also for the nuclei $^{88}Sr and ^{90}Zr$. These are the first calculations which can reproduce simultaneously the full level scheme of $^{146}$Gd up to 4 MeV including both predominantly collective levels as well as the more pure particle-hole excitations with higher spin. Within our formalism it has been possible to calculate also the nuclear properties of the even-even N=82 isotones araund $^{146}$Gd. The results concerning $^{142}Nd, ^{144}Sm, ^{148}Dy and ^{150}$Er show a good agreement with the experimental data, however they exhibit, unlike $^{146}$Gd, a systematic upward shift of the excited levels with respect to the observed states. We ascribe this effect to the semplicity of our choicefor the particle-particle interaction, which is a density-dependent $\delta$-force. |
| نوع الوثيقة: | report |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/hdl/2128/13745; https://juser.fz-juelich.de/record/827387Test; https://juser.fz-juelich.de/search?p=id:%22FZJ-2017-01516%22Test |
| الإتاحة: | https://juser.fz-juelich.de/record/827387Test https://juser.fz-juelich.de/search?p=id:%22FZJ-2017-01516%22Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.E65C87A3 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |