| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000361846 |
| ISSN: | 0103-9733 |
| Authors: | Ram, Daya1 Devi, Rami1 Khosa, S.K1 |
| Institutions: | 1University of Jammu, Department of Physics and Electronics, Jammu, Kashmir. India |
| Year: | 2013 |
| Season: | Ago |
| Volumen: | 43 |
| Number: | 4 |
| Pages: | 247-253 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The yrast spectra, quadrupole moments, quadrupole deformation parameters (β2), non-axiality parameters (γ ), root mean-square radii for protons and neutrons, occupation probabilities, moment of inertia (I ), and B(E2) transition probabilities are calculated for 222−226Th in the cranked Hartree–Bogoliubov framework. The calculations employ a quadrupole-quadrupole plus pairing model of residual interaction operating in a reasonably large valence space outside the 164Pb core. Our calculations reproduce qualitatively the observed yrast spectra in 222−226Th up to spin 20+. The calculated results indicate that the nonaxiality parameter decreases as one moves along the yrast states. The observed increase in deformation from 222Th to 226Th is due to the increase in the occupation of lowk components of (2g9/2)π and (1j15/2)ν orbits. The model parameters reproduce not only the moment of inertia, deformation, and transition probabilities but also the proton and neutron pairing gaps and are the most appropriate for cranking studies in this region |
| Disciplines: | Física y astronomía |
| Keyword: | Física nuclear, Espectro Yrast, Momento cuadrupolar, Plataforma de Hartree–Bogoliubov |
| Keyword: | Physics and astronomy, Nuclear physics, Yrast spectrum, Quadrupole moment, Hartree–Bogoliubov framework |
| Full text: | Texto completo (Ver HTML) |
