Papers by Fadhil I. Sharrad
Revista Mexicana de Física
In this paper, the energy levels of the ground-state band (GSB) and other states for 114−128Cd is... more In this paper, the energy levels of the ground-state band (GSB) and other states for 114−128Cd isotopes have been determined using the Interacting Boson Model (IBM-1) with a New Empirical Equation (NEE). The GSB results showed that the IBM-1, NEE, and available experimental data were all in fairly consistent. The NEE and IBM-1 calculations for the high states above 6+ state are slightly overestimated compared to the experimental data, with the exception of the 114Cd and 118Cd nuclei. Furthermore, the reduced transition probabilities B(E2) extracted from the IBM-1 model agree well with the available experimental data. The potential energy surface (EPS) was also examined with the IBM-1. The EPS contour results for Cd isotopes demonstrate that the Cd isotopes under investigation represent a smooth transition behavior from light Cd nuclei toward a more collective vibrational mode as the neutron number increases.
Problems of Atomic Science and Technology, 2015
In this paper, the yrast states and the electric reduced transition probabilities B(E2) ? from ga... more In this paper, the yrast states and the electric reduced transition probabilities B(E2) ? from gamma transition 8+ to 6+, 6+ to 4+, 4+ to 2+ and 2+ to 0+ states of neutron rich 122Te nucleus in the frame work of Interacting Boson Model-I (IBM-I) have carried out. The calculated results have been compared with the available experimental values. The ratio of the excitation energies of first 4+ and 2+ excited states (R4/2), have also been calculated for this nucleus. An acceptable degree of agreement between the predictions of IBM-I model and experiment is achieved. Moreover, as a measure to quantify evolution, we studied the transition rate R = B(E2 : L+ ? (L - 2)+) / B(E2 : 2+ ? 0+) of some of the low-lying quadrupole collective states in comparison to the available experimental data. The IBM-I formula for energy levels and the reduced transition probabilities B(E2) have been analytically deduced in the U(5) limit for a few yrast states transitions in 122Te isotope.
All in-text references underlined in blue are linked to publications on ResearchGate, letting you... more All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.
All in-text references underlined in blue are linked to publications on ResearchGate, letting you... more All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.
Binding energy of the ground state, energy levels and the B(E2) values of both positive and negative
A description of the even-even Pd isotopes for A = 102 to 106 in the framework of the Interacting... more A description of the even-even Pd isotopes for A = 102 to 106 in the framework of the Interacting Boson Model (IBM) are carried out. The low-lying positive parity yrast bands, as well as the associated B(E2) values, have been calculated in good agreement with the experimental data. The contour plots of the potential energy surface are studied, by using the simplified form of IBM with an intrinsic coherent state. The critical points have been determined for Pd isotope, and O(6) symmetry is substantiated for Pd.
Revista Mexicana de Física, 2021
The intruder configurations (1p-1h), (2p-2h) and (3p-3h) were studied in this work for the island... more The intruder configurations (1p-1h), (2p-2h) and (3p-3h) were studied in this work for the island of inversion within the SDPF-U Hamiltonian. The effect of the proton locations on the structure (energies and transition probabilities) for even-even and even-odd magnesium (N=20-24) isotopes is studied.
The interacting boson model (IBM-1) is used to calculate the energy levels, transition probabilit... more The interacting boson model (IBM-1) is used to calculate the energy levels, transition probabilities B(E2), and potential energy surfaces of some even 120−126Xe isotopes. The theoretical values are in good agreement with the experimental data. The potential energy surface is one of the nucleus properties, and it gives a final shape of nuclei. The contour plot of the potential energy surfaces shows that the 120−126Xe nuclei are deformed and have γ-unstable-like characters. K e yw o r d s: IBM-1, energy levels, B(E2) values, potential energy surface, Xe isotopes.
AIP Conference Proceedings, 2013
Binding energy of the ground state, energy levels and the reduced probability for E2 transitions ... more Binding energy of the ground state, energy levels and the reduced probability for E2 transitions for O, F, Ne, Na and Mg nuclei with mass number A=20 and nucleon numbers between 8 and 12 have been calculated through shell model calculations using the shell model code OXBASH for Windows by employing the usdapn interaction for neutron and proton particles orbits in sd-shell. The binding energies calculations are in good agreement with experimental data. The predicted low-lying levels (energies, spins and parities) and the reduced probability for E2 transitions results are reasonably consistent with the available experimental data.
Inelastic electron scattering form factors for 29 Si nucleus with total angular momentum and posi... more Inelastic electron scattering form factors for 29 Si nucleus with total angular momentum and positive parity (Jπ) and excited energy (3/2+, 1.273 MeV; 5/2+, 2.028 MeV; 3/2+, 2.425 MeV and 7/2+, 4.079 MeV) have been calculated using higher energy configurations outside the sd-shell. The calculations of inelastic form factors up to the first- and second-order with and without core-polarization (CP) effects were compared with the available experimental data. The calculations of inelastic electron scattering form factors up to the first-order with CP effects are in agreement with the experimental data, excepted for states 3/2+(1.273 MeV) and 5/2+(2.028 MeV) and without this effect are failed for all states. Furthermore, the calculations of inelastic electron scattering form factors up to the second-order with CP effects are in agreement with the experimental data for 3/2+(1.273 MeV) and 5/2+(2.028 MeV).
The energy levels, transition energy, B （E2） values,intrinsic quadrupole moment Q0 and potential ... more The energy levels, transition energy, B （E2） values,intrinsic quadrupole moment Q0 and potential energy surface for even-even 184W and 184Os nuclei were calculated using IBM-1. The predicted energy levels, transition energy, B（E2） values and intrinsic quadrupole moment Q0 results are reasonably consistent with the experimental data. A contour plot of the potential energy surfaces shows that two interesting nuclei are deformed and have rotational characters.
Binding energy of the ground state, energy levels and the reduced probability for E2 transitions ... more Binding energy of the ground state, energy levels and the reduced probability for E2 transitions for O, F, Ne, Na and Mg nuclei with mass number A=20 and nucleon numbers between 8 and 12 have been calculated through shell model calculations using the shell model code OXBASH for Windows by employing the usdapn interaction for neutron and proton particles orbits in sd-shell. The binding energies calculations are in good agreement with experimental data. The predicted low-lying levels (energies, spins and parities) and the reduced probability for E2 transitions results are reasonably consistent with the available experimental data.
European Journal of Applied Physics
This paper has been explained to study the rotational arrangement of even-even 168Hf isotope usin... more This paper has been explained to study the rotational arrangement of even-even 168Hf isotope using the phenomenological fitting, Sood’s semi-empirical formula. The rotational energies from the calculated values were compared to the experimental data. The result shows that in 168Hf, calculated energies fit the experimental values to a remarkable degree of accuracy.
IOP Conference Series: Materials Science and Engineering
IOP Conference Series: Materials Science and Engineering
Brazilian Journal of Physics, 2015
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Papers by Fadhil I. Sharrad