عنوان المقالة:(Study of Phase Transitions and Critical Points in the Rare-Earth Region in the Framework of the Interacting Boson Model (IBM-1)
فؤاد عطية مجيد | Prof.Dr.Fouad A. Majeed | 5977
- نوع النشر
- مجلة علمية
- المؤلفون بالعربي
- Journal of Kufa-Physics
- الملخص العربي
- A systematic study of isotope chains in the rare–earth region is presented. The energy levels, E2 transition rates, and two–neutron separation energies are described by using the most general IBM-1 Hamiltonian for the chains For each isotope chain a general fit is performed in such a way that all parameters but one are kept fixed to describe the whole chain.In this region nuclei evolve from spherical to deformed shapes and a method based on catastrophe theory, in combination with a coherent state analysis to generate the IBM-1-1 energy surfaces, is used to identify critical phase transition points
- تاريخ النشر
- 02/01/2011
- الناشر
- F. A. Majeed and K. S. Jassim
- رابط الملف
- تحميل (236 مرات التحميل)
- الكلمات المفتاحية
- quantum phase transitions, catastrophe theory, interacting boson model