A study of positive parity yrast bands of 230–240U and 236–242Pu nuclei

Autor: S. K. Khosa, Saiqa Sadiq, Daya Ram, Rani Devi
Rok vydání: 2014
Předmět:
Zdroj: Indian Journal of Physics. 89:713-722
ISSN: 0974-9845
0973-1458
DOI: 10.1007/s12648-014-0639-7
Popis: The projected shell model is used to study the yrast positive parity bands in 230–240U and 236–242Pu nuclei. The energy levels, deformation systematics, E2 transition probabilities and g-factors are calculated. The calculation reproduces the observed positive parity yrast bands and B(E2) transition probabilities. The observed deformation trend of low-lying states in Uranium and Plutonium nuclei depends on the occupation of down-sloping components of high j orbits in the valence space. The low-lying states of yrast spectra are found to arise from 0-quasiparticle (qp) intrinsic states, whereas the high spin states possess multi-qp structure. The theoretical results of g-factors of Pu isotopes predict an increase in g-factors at higher spins arising from the alignment of protons in 1i13/2 orbit. The predicted values of B(E2)s and g-factors for higher spin states in Pu isotopes have to be verified experimentally.
Databáze: OpenAIRE
Externí odkaz: