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NSR database version of April 29, 2024.

Search: Author = A.Gyawali

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2019AG06      Phys.Rev. C 99, 034316 (2019)

S.E.Agbemava, A.V.Afanasjev, A.Taninah, A.Gyawali

Extension of the nuclear landscape to hyperheavy nuclei

NUCLEAR STRUCTURE ²⁰⁸Pb, ⁴⁶⁶156; calculated binding energies versus β₂. ³⁶⁶138, ⁴⁶⁶156, ⁵⁸⁰174; calculated neutron and proton single-particle energies, potential energy surfaces (PES) in (β₂, β₃) and (β₂, γ) planes. ⁴⁶⁶156; calculated neutron density distribution versus β₂, neutron and proton pairing energies and pairing gaps as a function of the β₂ and γ deformations. ²⁰⁸Pb, ²⁹²120, ³⁶⁸138, ⁴⁶⁶156, ⁵⁸⁴174; calculated proton and neutron densities, charge radii, neutron skins. ^296,300122, ^316,320124; calculated deformation energy curves as function of β₂, potential energy surfaces (PES) in (β₂, β₃) plane. ^{324,328,332,336,340,344,348,352,356,360,364,368,372,376,380,384,388,392,396,400,404,408,412,416,420,424,428,432,436,440,444,448,452,456,460,464}138; calculated deformation energy curves, and proton and neutron chemical potentials as function of β₂. ²⁶⁸Sg, ³³²Ds, ³⁶⁰130, ^354,432134, ³⁴⁸138; calculated three-dimensional potential energy surfaces in (β₂, β₄, γ) plane. ^{258,268,278,288,298,308,318,328,338,348,358}Sg, ^{272,282,292,302,312,322,332,342,352,362}Ds, ^{276,286,296,306,316,326,336,346,356,366}Fl, ^{290,300,310,320,330,340,350,360,370,380,390}Og; calculated heights of fission barriers along the fission paths for quadrupole and triaxial deformations, inner fission barrier heights. ²⁰⁸Pb, ³⁵⁴134, ⁴⁶⁶156, ⁴²⁶176; calculated Coulomb energies as function of β₂. Z=140-180, N=192-420; calculated proton β₂ values of the lowest in energy solutions of the Z=140-180 nuclei. Z=132-176, N=292-324; calculated S(2n), S(2p), neutron and proton pairing energies for spherical minima. Z=2-170, N=2-440; calculated proton quadrupole deformations β₂ of the lowest in energy minima for axial symmetry with ellipsoidal-like shapes, for nuclei with fission barriers > 2 MeV, and nuclei with two-proton and two-neutron drip lines. Covariant density functional theory with DD-ME2, PC-PK1, DD-PC1 and NL3* functionals, based on axial reflection symmetric and reflection asymmetric relativistic Hartree-Bogoliubov (RHB) calculations, and treating triaxiality within the triaxial RHB and triaxial relativistic mean field+BCS frameworks.

doi: 10.1103/PhysRevC.99.034316
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