NSR Query Results
Output year order : Descending NSR database version of May 10, 2024. Search: Author = M.Ghapanvari Found 13 matches. 2024JA02 Nucl.Phys. A1042, 122814 (2024) M.A.Jafarizadeh, N.Amiri, M.Seidi, M.Ghapanvari Quantum entanglement of SO(6)-U(5) transitional nuclei in the interacting boson model-2 (IBM-2) NUCLEAR STRUCTURE 122,124,126,128,130,132,134,136Ce; calculated entanglement entropy values of the low-lying states using IBM-1 and IBM-2; deduced the minimal entanglement entropy for the s-d bosons in the U(5) limit, while maximal entanglement entropy in the O(6) limit.
doi: 10.1016/j.nuclphysa.2023.122814
2022JA02 Phys.Rev. C 105, 014307 (2022) M.A.Jafarizadeh, M.Ghapanvari, N.Amiri Entanglement entropy as a signature of a quantum phase transition in nuclei in the framework of the interacting boson model and interacting boson-fermion model NUCLEAR STRUCTURE 102,104,106,108,110Pd, 122,123,124,125,126,127,128,129,130,131,132,133,134Xe; calculated entanglement entropy of quantum phase transition, and Q2 for even-A nuclei in the interacting boson model (IBM) and interacting boson-fermion model (IBFM) using affine SU(1, 1) Lie algebra and Schmidt decomposition. Comparison with experimental Q2 values for even-A Pd nuclei.
doi: 10.1103/PhysRevC.105.014307
2021GH12 Phys.Part. and Nucl.Lett. 18, 511 (2021) M.Ghapanvari, M.A.Jafarizadeh, N.Amiri, M.Seidi Supersymmetric Algebraic Model for Descriptions of Transitional Even-Even and Odd-A Nuclei near the Critical Point of the Vibrational to γ-Unstable Shapes NUCLEAR STRUCTURE 134,135Ba, 130,131Xe; calculated energy levels, J, π, B(E2), expectation values of the d-boson number operator for the lowest states and the fermion number operator. Comparison with available data.
doi: 10.1134/S154747712105006X
2020AM03 Nucl.Phys. A1002, 121961 (2020) N.Amiri, M.Ghapanvari, M.A.Jafarizadeh, S.Vosoughi Nuclear structure and phase transition of odd-odd Cu isotopes: A neutron-proton interacting boson-fermion-fermion model calculation NUCLEAR STRUCTURE 60,62,64,66Cu; calculated energy levels, J, π, neutron separation energies, Q-values. Comparison with experimental values.
doi: 10.1016/j.nuclphysa.2020.121961
2018GH03 Nucl.Phys. A971, 51 (2018) M.Ghapanvari, A.H.Ghorashi, Z.Ranjbar, M.A.Jafarizadeh High-spin level structure and Ground-state phase transition in the odd-mass 103-109Rh isotopes in the framework of exactly solvable sdg interacting boson-fermion model NUCLEAR STRUCTURE 103,105,107,109Rh; calculated negative-parity levels, J, π, 2n separation energies, γ-vibration band signature splitting, α-decay energy, 2β-decay energy, Q(α), Q(2β-) using sd- and sdg-IBFM. Compared with available data.
doi: 10.1016/j.nuclphysa.2018.01.009
2018JA01 Nucl.Phys. A969, 114 (2018) M.A.Jafarizadeh, Z.Ranjbar, N.Fouladi, M.Ghapanvari Exactly solvable model of transitional nuclei based on dual algebraic structure for the three level pairing model in the framework of sdg interacting boson model NUCLEAR STRUCTURE 104,106,108,110Pd; calculated positive parity levels, J, π, B(E2), B(E4), signature splitting of γ-bands using two versions of IBM model. Compared to data.
doi: 10.1016/j.nuclphysa.2017.09.007
2018JA04 Nucl.Phys. A972, 86 (2018) M.A.Jafarizadeh, N.Amiri, N.Fouladi, M.Ghapanvari, Z.Ranjbar Study of phase transition of even and odd nuclei based on q-deforme SU(1, 1) algebraic model NUCLEAR STRUCTURE 120,122,124,126,128Xe; calculated levels, J, π, quadrupole coefficients, B(E2) using IBM-1, IBM-2, qIBFM-1, qIBFM-2. 123,125,127,129,131Xe; calculated levels, J, π using IBFM. Compared to data.
doi: 10.1016/j.nuclphysa.2018.02.002
2018JA13 Nucl.Phys. A977, 129 (2018) M.A.Jafarizadeh, N.Amiri, M.Ghapanvari, N.Fouladi Algebraic solutions for q - sdl- and q - sdll'-boson systems in the transitional region NUCLEAR STRUCTURE 126,128,130,132,134,136Ba; calculated levels, J, π, energy rates E(4+1)/E(2+1) and E(0+1)/E(2+1) using spdf-IBM, spd-IBM, q-spdf-IBM and q-spd-IBM. Compared with data.
doi: 10.1016/j.nuclphysa.2018.07.002
2017GH04 Int.J.Mod.Phys. E26, 1750036 (2017) M.Ghapanvari, M.A.Jafarizadeh, N.Fouladi, Z.Ranjbar, N.Amiri Isospin excitation and shape phase transition in odd-mass Cu isotopes NUCLEAR STRUCTURE 61,63,65,67,69Cu; calculated energies, J, π, B(E2). Comparison with experimental values.
doi: 10.1142/S0218301317500367
2017JA13 Int.J.Mod.Phys. E26, 1750070 (2017) M.A.Jafarizadeh, Z.Ranjbar, N.Fouladi, M.Ghapanvari Investigation of triaxiality in 122-12854Xe isotopes in the framework of sdg-IBM NUCLEAR STRUCTURE 122,124,126,128Xe; calculated J, π, B(E2). Transitional interacting boson model (IBM).
doi: 10.1142/S0218301317500707
2016JA05 Int.J.Mod.Phys. E25, 1650048 (2016) M.A.Jafarizadeh, N.Fouladi, M.Ghapanvari, H.Fathi Phase transition studies of the odd-mass 123-135Xe isotopes based on SU(1, 1) algebra in IBFM NUCLEAR STRUCTURE 123,125,127,129,131,133,135Xe; calculated energy surfaces, B(E2), energy levels, J, π. Comparison with experimental data.
doi: 10.1142/S0218301316500488
2016JA06 J.Phys.(London) G43, 095108 (2016) M.A.Jafarizadeh, A.Jalili Majarshin, N.Fouladi, M.Ghapanvari Investigation of quantum phase transitions in the spdf interacting boson model based on dual algebraic structures for the four-level pairing model NUCLEAR STRUCTURE 98,100,102,104,106,108,110Ru; calculated energy levels, J, π, B(E2). Comparison with available data.
doi: 10.1088/0954-3899/43/9/095108
2015JA06 Phys.Rev. C 92, 054306 (2015) M.A.Jafarizadeh, M.Ghapanvari, N.Fouladi Algebraic solutions for UBF (5) - OBF (6) quantum phase transition in odd-mass-number nuclei NUCLEAR STRUCTURE 101,103,105,107,109Rh, 127,129,131,133,135,137Ba; calculated levels, J, π, expectation values of the d-boson number, B(E2), S(2n). Dual algebraic structures and the affine SU(1, 1) Lie algebra within the framework of interacting boson-fermion model. Comparison with experimental data. Evidence for U(5) to O(6) quantum phase transition for negative-parity states in odd-A Rh and positive-parity states in odd-A Ba isotopic chains.
doi: 10.1103/PhysRevC.92.054306
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