Systematic Projected Shell Model Study of Even-Even Dysprosium Isotopes

Autor: H. Aghahasani, S. Mohammadi, Z. Sajjadi
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Atom Indonesia, Vol 48, Iss 1, Pp 29-35 (2022)
Druh dokumentu: article
ISSN: 0126-1568
DOI: 10.17146/aij.2022.1190
Popis: Back-bending phenomenon is one of the important phenomena usually seen at high spin states of even - even heavy nuclei. As a result, any changes in the behavior of nuclear rotation, such as increase in moment of inertia versus rotational frequency can be shown in the usual back-bending plots which have been studied in many papers before. In this paper we show for the first time that these changes can be seen in the ratio of electromagnetic reduced transition probabilities B (E2) and B (M1) in even - even 152-164Dy isotopes using the Projected Shell Model (PSM) theory. The electric quadrupole transition probability B (E2) and the magnetic dipole transition probability B (M1) moments are sensitive to nuclear shape deformation and nuclear charge distribution, respectively. Our findings confirm the well-known back-bending previously seen and are in good agreement with experimental results. While intrinsic quadrupole moments are constant for each Dy isotope, the new findings show that spectroscopic quadrupole moments are increasing with spin.
Databáze: Directory of Open Access Journals
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