Structure and Behavior of Superdeformed Rotational Bands in the A∼190 Mass Region Using Exponential Model with Pairing Attenuation

Authors

Alhoseny Abdalaty, Physics Department, Faculty of Science (Assuit branch), Al-Azhar University, EgyptFollow
Madiha Okasha, Physics Department, Faculty of Science (Girls branch), Al-Azhar University, Cairo, EgyptFollow
Mahmoud Gad, Physics Department, Faculty of Science, (Boys), Al-Azhar University, Cairo, EgyptFollow

Corresponding Author

Gad, Mahmoud

Document Type

Original Article

Subject Areas

Mathematics, Statistics, Computer Science, Physics and Astronomy

Keywords

Pairing Attenuation; STAGGERING; Thallium nuclei

Abstract

The exponential model with pairing attenuation (EMPA) is extended and used to analysis the superdeformed rotational bands(SDRB’s) in Thallium nuclei in the mass region A∼190 .The level spins are extracted by fitting the experimental dynamical moment of inertia J(2) to the theoretical version of Harris expansion in even powers of rotational frequency ħω. Using the assigned spins ,the parameters of the extended exponential model are adjusted by using a computer simulated search program to fit the transition energies with experimental ones .The best adopted parameters are used to calculate transition energies Eγ(I) rotational frequencies ħω ,kinematic J(1) and dynamic J(2) moments of inertia .The variation of J(1) and J(2) versus ħω are examined .A staggering functions depends on the concept of EGOS and finite differences are suggested to investigate and exhibit the I=1 staggering effects in transition energies in the studied SDRB’s. The phenomenon of identical bands in also investigated in Thallium nuclei.

How to Cite This Article

Abdalaty, Alhoseny; Okasha, Madiha; and Gad, Mahmoud (2020) "Structure and Behavior of Superdeformed Rotational Bands in the A∼190 Mass Region Using Exponential Model with Pairing Attenuation," Al-Azhar Bulletin of Science: Vol. 31: Iss. 2, Article 11.
DOI: https://doi.org/10.21608/absb.2020.37318.1075