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NSR database version of May 20, 2024.

Search: Author = M.A.Hasan

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2023HA37      Ukr.J.Phys. 68, 577 (2023)

M.A.Hasan, A.H.Taqi

Proton and Neutron Pairing Properties within a Mixed Volume-Surface Pairing Type Using the Hartree-Fock-Bogolyubov Theory

NUCLEAR STRUCTURE Z=2-110; analyzed available data; deduced a more accurate mass formula with the Skyrme (SKI3) force, the global descriptive power of the Skyrme–Hartree–Fock–Bogoliubov model for pairing properties.

doi: 10.15407/ujpe68.9.577
Citations: PlumX Metrics


2021TA32      Ukr.J.Phys. 66, 928 (2021)

A.H.Taqi, M.A.Hasan

Skyrme-Hartree-Fock-Bogoliubov Calculations of Even and Odd Neutron-Rich Mg Isotopes

NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60Mg; calculated binding energies, one- and two-neutron separation energies, quadrupole deformation parameters, neutron and proton radii. Hartree-Fock-Bogoliubov calculations based on the D1S Gogny force, and predictions of some nuclear models such as the Finite Range Droplet Model (FRDM) and Relativistic Mean-Field (RMF)model.

doi: 10.15407/ujpe66.11.928
Citations: PlumX Metrics


2004HA16      Phys.Rev. C 69, 034332 (2004)

M.A.Hasan, J.P.Vary, P.Navratil

Hartree-Fock approximation for the ab initio no-core shell model

NUCLEAR STRUCTURE 4He, 16O; calculated binding energies, radii. No-core shell model, Hartree-Fock approximation.

doi: 10.1103/PhysRevC.69.034332
Citations: PlumX Metrics


2001HA44      Phys.Rev. C64, 024306 (2001)

M.A.Hasan, J.P.Vary, T.-S.H.Lee

Medium-Mass Nuclei with Δ Excitations under Compression

NUCLEAR STRUCTURE 90Zr, 100,132Sn; calculated constrained spherical Hartree-Fock energy vs radius, sensitivity to size of nucleon and Δ isobar model spaces.

doi: 10.1103/PhysRevC.64.024306
Citations: PlumX Metrics


2000HA02      Phys.Rev. C61, 014301 (2000)

M.A.Hasan, J.P.Vary, T.-S.H.Lee

Effect of Neutron Excess on Δ Excitations in Exotic Nuclei

NUCLEAR STRUCTURE 28O, 60,70Ca; calculated Δ resonance states features; deduced role of neutron excess. Constrained spherical Hartree-Fock approach.

doi: 10.1103/PhysRevC.61.014301
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1998HA55      Phys.Rev. C58, 2754 (1998)

M.A.Hasan, J.P.Vary

Thermal Properties of 40Ca and 90Zr

NUCLEAR STRUCTURE 40Ca, 90Zr; calculated single-particle levels, radii, free energy, entropy vs temperature. Mean-field approach, NN potentials compared.

doi: 10.1103/PhysRevC.58.2754
Citations: PlumX Metrics


1997HA56      Phys.Rev. C56, 3063 (1997)

M.A.Hasan, T.-S.H.Lee, J.P.Vary

Mean-Field Calculation of Compressed Finite Nuclei with Δ Excitations

NUCLEAR STRUCTURE 90Zr; calculated proton, neutron, Δ radial density distributions, compressibility; deduced Δ component vs compression. Constrained Hartree-Fock.

doi: 10.1103/PhysRevC.56.3063
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1996HA37      Phys.Rev. C54, 3035 (1996)

M.A.Hasan, J.P.Vary

Δ Excitations in Compressed Finite Nuclei. II. Nucleon-Nucleon Interaction Dependence

NUCLEAR STRUCTURE 40Ca, 90Zr; calculated Δ's number vs rms radius; deduced nucleon-, Δ-orbitals mixing related features at equilibrium. Spherical Hartree-Fock.

doi: 10.1103/PhysRevC.54.3035
Citations: PlumX Metrics


1994HA26      Phys.Rev. C50, 202 (1994)

M.A.Hasan, J.P.Vary

Delta Excitations in Compressed Finite Nuclei

NUCLEAR STRUCTURE 16O, 40Ca, 56Ni; calculated constrained spherical Hartree-Fock energy, Δ occupation number vs point mass radius, n, p, Δ radial density distributions; deduced energy increase is stored as Δ-mass creation. Compressed nuclei.

doi: 10.1103/PhysRevC.50.202
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1994VA09      Nucl.Phys. A570, 355c (1994)

J.P.Vary, M.A.Hasan

Nuclear Shell Model with Delta Excitations

NUCLEAR STRUCTURE 132Sn; calculated nucleonic, Δ-content of ground state; deduced compression role in Δ degree of freedom population. Shell model with Δ excitations.

doi: 10.1016/0375-9474(94)90301-8
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1992JA13      Phys.Rev. C46, 2333 (1992)

L.Jaqua, M.A.Hasan, J.P.Vary, B.R.Barrett

Kinetic-Energy Operator in the Effective Shell-Model Interaction

NUCLEAR STRUCTURE 16,17O; calculated single-particle energies; deduced center-of-mass kinetic energy role in relating these to observed removal energies. Effective shell model interactions.

doi: 10.1103/PhysRevC.46.2333
Citations: PlumX Metrics


1987HA37      Phys.Rev. C36, 2180 (1987)

M.A.Hasan, S.Kohler, J.P.Vary

Excitation of the Δ(3, 3) Resonance in Compressed Finite Nuclei

NUCLEAR STRUCTURE 16O, 40Ca; calculated binding energies, rms radii, isobar excitation probabilities. Constrained Hartree-Fock method.

doi: 10.1103/PhysRevC.36.2180
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1987HA42      Phys.Rev. C36, 2649 (1987)

M.A.Hasan, S.Kohler, J.P.Vary

Excitation of the Δ(3, 3) Resonance in Compressed Finite Nuclei from a Constrained Mean-Field Method

NUCLEAR STRUCTURE 16O, 40Ca; calculated binding energy, isobar occupation probability, rms radii. Constrained Hartree-Fock method.

doi: 10.1103/PhysRevC.36.2649
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1978HE02      Phys.Rev.Lett. 40, 158 (1978)

J.C.Herrera, J.J.Kolata, H.W.Kraner, C.L.Wang, R.Allen, D.Gockley, M.A.Hasan, A.Kanofsky, G.Lazo

Observation of Characteristic γ Radiation from the (K-, π-γ) Reaction on Light Nuclei

NUCLEAR REACTIONS 7Li(K-, π-γ), E=1.7 GeV/c; measured γ-spectra; deduced hypernuclear transitions. Be, B, C, O(K-, π-γ), E=1.7 GeV/c; measured γ-spectra.

doi: 10.1103/PhysRevLett.40.158
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