Properties of superdeformed bands in A ∼ 190 region within the framework of three parameters nuclear softness model

Khalaf, A. M.; Sirag, M.M.; Abdelmageed, K.E.

doi:10.1016/j.cjph.2016.03.018

Cited by 8 publications

(7 citation statements)

References 12 publications

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“…The ΔI = 1 stagger found in signature partner pairs [16,[28][29][30][31] is another form of energy stagger found in SD odd-A nuclei. The bandhead moments of inertia of each pair are almost equal, and the bulk of these signature partners have a significant amplitude.…”

Section: M Aziz Et Almentioning

confidence: 74%

“…Several suitable methods for assigning spins based on observed γ-ray transition energies have been proposed. [14,[16][17][18][19][20][21].…”

Section: M Aziz Et Almentioning

confidence: 99%

“…Because of the challenges in calculating the de-excitation of SD bands into established yrast states, spins in SD nuclei are not determined experimentally. Several related procedures for assigning spins to SD states were proposed [16][17][18][19][20][21]. The most familiar method is to use Harris expansion [32].…”

Section: Spin Assignment and Moments Of Inertiamentioning

confidence: 99%

“…Many efforts were built to understand the definition and origins of the IB's phenomena by means of conventional investigation within the framework of the semi-phenomenological Strutinski_method in connection with a rotating Nilsson or Woods-Saxon potential [9] or the pseudo-spin scheme [10]. In addition, theoretical activities were done to understand the IB's phenomenon [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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The Behavior of Moments of Inertia and Energy Staggering in Superdeformed Nuclei.

Aziz

Okasha

Ahmed

2021

Al-Azhar Bulletin of Science

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Three pairs of signature partners' transition energies of Thallium (Tℓ) odd mass superdeformed (SD) nuclei's (A ~ 191-195), were fitted with the experimental one using the Bohr-Mottelson four-parameter collective rotational model. We chose the Bohr-Mottelson four-parameter rotational energy formula because it has been reported that it has excellent compatibility with the γ-ray transition energies. The four model parameters were extracted using a suitable search program. Harris's method was used to calculate the superdeformed rotational bands' (SDRBs) bandhead spins. The values of the adopted parameters, which were obtained using a simulated fitting search software, were used to measure the rotational frequency, dynamic J (2) , and kinematic J (1) moments of inertia to the transition energies. When compared to the experimental values, there is a great deal of agreement J (2) and J (1) have been studied as a function of increasing rotational frequency. The suggested staggering function was used to investigate the ΔI= 1 energy staggering in Tℓ odd mass SD nuclei.

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Section: M Aziz Et Almentioning

confidence: 74%

“…Several suitable methods for assigning spins based on observed γ-ray transition energies have been proposed. [14,[16][17][18][19][20][21].…”

Section: M Aziz Et Almentioning

confidence: 99%

Section: Spin Assignment and Moments Of Inertiamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Behavior of Moments of Inertia and Energy Staggering in Superdeformed Nuclei.

Aziz

Okasha

Ahmed

2021

Al-Azhar Bulletin of Science

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“…One of the unexpected features that happen in SDRBs is the presence of identical bands (IB's) [25,27,[29][30][31]. This interested discovery of IB's has been seen also in pairs of normal deformed nuclei [32,33].…”

Section: Introductionmentioning

confidence: 99%

Application of Suggested Three Parameters Collective Rotational Model to Superdeformed Thallium Odd-Mass Nuclei

Khalaf

Taha

Ismail

2022

J. Phys.: Conf. Ser.

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The superdeformed rotational bands (SDRB’s) of axial symmetric Tl odd-A nuclei are described within the framework of the suggested model as an extended version of Bohr-Moltelson (BM) model. The suggested model has three parameters rather than the BM model’s two parameters. The model is employed to calculated the transition energies and therefore the unknown level spins within the three pairs of signature partners 191Tl (SD1, SD2), 193Tl (SD1, SD2) and 195Tl (SD1, SD2). The optimized model parameters and therefore the unknown spins for every band are adjusted by employing a computer simulated search program to induce a minimum root mean square deviation between the calculated theoretical and experimental transition energies Eγ (I). The most effective adopted model parameters and spins are wont to calculate the kinematic J (1) and dynamic J (2) moments of inertia, and rotational frequency ħω,. The calculated results agree excellently with the experimental ones. The behaviour of J (1) and J (2) with ħω is examined and discussed. Also, the calculated transition energies and spins are accustomed investigate and exhibit the ΔI = 1 staggering effects in transition energies between each pair of the signature partners. This can be done by considering three staggering indices looking on the dipole γ-transitions between the 2 bands of the signature partners and therefore the quadrupole γ-transitions within each band. All the studied three signature partner pairs showed an oversized amplitude staggering pattern. The ΔI = 1 energy staggering also appears within the transition energies after subtracting a rigid rotor reference when plotted versus spin. The phenomenon of identical bands (IB’s) is additionally investigated within the two pairs [193Tl (SD1), 195Tl (SD1)] and [193Tl (SD2), 195Tl (SD2)] by using the concept of incremental alignment.

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Investigation of energy staggering effects in Thorium isotopes in framework of interacting vector Boson model

et al. 2019

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Properties of superdeformed bands in A ∼ 190 region within the framework of three parameters nuclear softness model

Cited by 8 publications

References 12 publications

The Behavior of Moments of Inertia and Energy Staggering in Superdeformed Nuclei.

The Behavior of Moments of Inertia and Energy Staggering in Superdeformed Nuclei.

Application of Suggested Three Parameters Collective Rotational Model to Superdeformed Thallium Odd-Mass Nuclei

Investigation of energy staggering effects in Thorium isotopes in framework of interacting vector Boson model

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