NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = M.Kotb Found 10 matches. 2023AB30 Phys.Atomic Nuclei 86, 946 (2023) M.A.Abdelsalam, H.A.Ghanim, M.Kotb, A.M.Khalaf Identical Bands Around the Isobaric Rare-Earth Even–Even Nuclei with the Mass Number of A=164 NUCLEAR STRUCTURE 162Yb, 166Hf, 162Er, 166Yb, 162Dy, 166Er, 160Dy, 168Yb, 160Er, 168Hf, 158Er, 170W, 158Dy, 170Hf, 156Dy, 172W; analyzed available data; deduced a theoretical collective rotational formula containing three parameters (CRF3) as an extended version of Bohr–Mottelson model to calculate the ground state positive parity excitation energies. Comparison with the potential energy surfaces (PES's) which describe the nuclear deformation.
doi: 10.1134/S1063778824010010
2023EL08 Phys.Atomic Nuclei 86, 356 (2023) W.B.Elsharkawy, A.Mera, M.Kotb, A.M.Khalaf Nuclear Shape Transition, Triaxiality and Energy Staggering of Υ-Band States for Even-Even Xenon Isotopic Chain NUCLEAR STRUCTURE 120,122,124,126,128,130,132,134Xe; calculated energy levels, J, π, B(E2), potential energy surfaces within the framework of modified O(6) limit of the interacting boson model (IBM).
doi: 10.1134/S1063778823040208
2022SA44 Phys.Atomic Nuclei 85, 434 (2022) Description of Some Superdeformed Bands in Mercury, Thallium, and Lead Nuclei Using a Suggested Collective Rotation-Vibration Model Plus Fluctuation Energy Term NUCLEAR STRUCTURE 192,194Tl, 193,194Pb, 191,192Hg; analyzed available data; deduced properties of eleven superdeformed (SD) bands, parameters for collective rotational-vibrational model with fluctuation energy term.
doi: 10.1134/S1063778822050088
2021AH01 Phys.Atomic Nuclei 84, 18 (2021) S.T.Ahmad, M.Kotb, I.H.Salih, H.Y.Abdullah Backbending Phenomena in Even-Even 162-172Hf Isotopes NUCLEAR STRUCTURE 162,164,166,168,170,172Hf; calculated the moment of inertia for heavy mass isotopes; deduced backbending shapes.
doi: 10.1134/S1063778821010063
2021GH11 Phys.Atomic Nuclei 84, 433 (2021) H.A.Ghanim, M.Kotb, M.D.Okasha, A.M.Khalaf Features of Triaxial Superdeformed Bands in Odd Mass Nuclei Using the Cranked Nilsson-Strutinsky Model NUCLEAR STRUCTURE 163,165Lu; calculated transition energies minus a rigid rotor reference for the bands, even-odd energy staggering parameters, axial asymmetry deformation parameter, the gamma transition energies, rotational frequencies, kinematic and dynamic moments of inertia in triaxial superdeformed (TSD) odd nuclei using the cranked Nilsson-Strutinsky (CNS) model.
doi: 10.1134/S106377882104013X
2021RA34 Phys.Part. and Nucl.Lett. 18, 527 (2021) M.Ramadan, A.M.Khalaf, M.Kotb, M.D.Okasha Nuclear Shape Phase Transitions Using IBM Applied to Erbium and Ruthenium Nuclei NUCLEAR STRUCTURE 154,156,158,160,162,164,166,168Er; calculated energy levels, J, π, B(E2), potential energy surfaces. The interacting boson model.
doi: 10.1134/S1547477121050095
2020AB17 Phys.Atomic Nuclei 83, 849 (2020) A.A.Abdalaty, M.Kotb, M.D.Okasha, A.M.Khalaf Extended Exponential Model with Pairing Attenuation and Investigation of Energy Staggering and Identical Bands Effects in Superdeformed Thallium Nuclei NUCLEAR STRUCTURE 191,192,193,194,195Tl; calculated rotational frequency, dynamic and kinematic moments of inertia, superdeformed rotational bands using extended exponential model with pairing attenuation (EEMPA).
doi: 10.1134/S1063778820660011
2020KH13 Phys.Atomic Nuclei 83, 866 (2020) A.M.Khalaf, M.Kotb, A.Abdelsalam, M.D.Okasha, S.T.Ahman, H.H.Kassim, F.I.Sharrad, H.Y.Abdullah Description of Superdeformed Bands of the Isotones N=113 for Nuclear Mass Region A ∼ 190 NUCLEAR STRUCTURE 193Hg, 194Tl, 195Pb; calculated electric quadrupole γ-ray transition energies Eγ, rotational frequencies, dynamic J and kinematic moments of inertia for yrast and excited superdeformed (SD) bands using two-parameter power-law formula.
doi: 10.1134/S1063778820660059
2019KH09 Nucl.Phys. A991, 121610 (2019) M.Khalil, A.M.Khalaf, M.Kotb, M.D.Okasha Properties of platinum isotopes in framework of particle rotor model and IBM NUCLEAR STRUCTURE 180,182,184,186,188,190,192Pt; calculated levels, angular momentum, dynamical moment of inertia vs rotational frequency, backbending using Particle Rotor Model (PRM) (a rotor core coupled with a few valence nucleons moving in deformed potential of the core), potential energy surface vs deformation parameter β; deduced Nilsson and Variable Moment of Inertia (VMI) parameters, critical angular momentum, quadrupole and decahexapole deformation parameters.
doi: 10.1016/j.nuclphysa.2019.121610
2017KH06 Int.J.Mod.Phys. E26, 1730011 (2017) Nature of cross-talk transitions and ΔI = 1 energy staggering in signature partners of odd mass superdeformed nuclei NUCLEAR STRUCTURE 191,193Hg, 193Tl; calculated γ-ray transition energies, super deformed bands, cross-talk transition energies, staggering functions.
doi: 10.1142/S0218301317500112
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