Investigation of nuclear structure and characteristics of select intermediate N=88 nuclei using the IBM-2  interacting boson model

Author(s)	Bashar. Hawi. Azeez Abu-Gebaz, Doaa katea ghali
Country	Iraq
Abstract	The Hamiltonian model of the second interacting bosons was utilised to calculate the energy levels of the isotopes (_88^144)〖Ba〗_56 ,(_88^146)〖Ce〗_58 ,(_88^148)〖Nd〗_60 . Upon calculating the ratio (E_41/E_21), it was determined that these isotopes are categorised within the O(6) group according to the classifications of the collective model, where the typical value is 2.5. The actual values for the nuclei under investigation were (2.66, 2.59, 2.49), but the theoretically estimated values were 2.84, 2.73, 2.57 for the isotopes (_88^144)〖Ba〗_56 ,(_88^146)〖Ce〗_58 ,(_88^148)〖Nd〗_60 . correspondingly. The diminished transition probability for electric quadrupole and magnetic dipole transitions, together with the electric dipole moment and effective charge for each isotope examined in this work, were also computed. The mixing ratio E_41/E_21 was computed to ascertain the dominating transition. Upon comparing the theoretical results with the available empirical data, a good concordance was observed, indicating an acceptable level of agreement.
Keywords	IBM-2, medium nuclei, reduced electric quadrupole, reduced magnetic dipole, mixing ratio, Energy levels of nuclei.
Field	Physical Science
Published In	Volume 7, Issue 2, March-April 2025
Published On	2025-03-03
DOI	https://doi.org/10.36948/ijfmr.2025.v07i02.37814

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