Phys.Rev. C 102, 054330 (2020)

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

Covariant density functional theory input for r-process simulations in actinides and superheavy nuclei: The ground state and fission properties

NUCLEAR STRUCTURE ^{206,208,210,212,214,216,218,220,220,220,220,220,230,232,234,236,238,240,242,244,246,248,250,252,254,256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300}Th, ^{264,266,258,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326,328,330,332,334,336,338,340,342,344,346,348,350,352,354,356,358,360,362,364,366,368}Ds; calculated binding energies as function of deformation β₂. ^{240,242,326,328}Cf, ^246,330,332Fm, ^{248,250,334,336}No, ^250,252,254Rf, ^254,256Sg; calculated superdeformed minima, β₂, β₃, second fission barriers, deformation energy curves and potential energy surface in (β₂, β₃) plane for ²⁴⁰Cf. ^{202,204,308,346}Th, ^{210,214,316,350}U, ^{216,220,326,352}Pu, ^{222,224,348,354}Cm, ^228,354,356Cf, ^232,358Fm, ^236,238,360No, ^242,244,362Rf, ^248,250,364Sg, ^{254,256,366,396}Hs, ^{260,264,368,402}Ds, ^{266,270,370,410}Cn, ^{272,276,376,416}Fl, ^{278,282,402,428}Lv, ^{284,288,412,436}Og, ^{290,294,418,434}120; predicted two-proton and two-neutron drip lines. ^{298,302,306,308,310,312,316,318,320,322,326,328,330,332,336,340}Og; calculated potential-energy surfaces in (β₂cos(γ+30), β₂sin(γ+30)) plane. Z=90-120, N=110-320; calculated proton quadrupole deformations β₂, binding-energies, S(2n), Q(α), α-decay half-lives, heights of primary fission barriers. Covariant density functional theory (CDFT) using state-of-the-art DD-PC1, DD-ME2, NL3*, and PC-PK1 CEDFs. Comparison to available data. Relevance to r-process modeling in heavy nuclei, and for the study of fission cycling.

doi: 10.1103/PhysRevC.102.054330