Phys.Rev. C 101, 024607 (2020)

M.Ismail, A.Adel

Prediction of α-decay chains and cluster radioactivity of ^300-304121 and ^302-306122 isotopes using the double-folding potential

RADIOACTIVITY ^{300,301,302,303,304}121, ^{296,297,298,299,300}119, ^{292,293,294,295,296}Ts, ^{288,289,290,291,292}Mc, ^{284,285,286,287,288}Nh, ^{280,281,282,283,284}Rg, ^{276,277,278,279,280}Mt, ^{272,273,274,275,276}Bh, ^{268,269,270,271,272}Db, ^{264,265,266,267,268}Lr(α); ^{302,303,304,305,306}122, ^{298,299,300,301,302}120, ^{294,295,296,297,298}Og, ^{290,291,292,293,294}Lv, ^{286,287,288,289,290}Fl, ^{282,283,284,285,286}Cn, ^{278,279,280,281,282}Ds, ^{274,275,276,277,278}Hs, ^{270,271,272,273,274}Sg, ^{266,267,268,269,270}Rf(α); calculated α-decay half-lives using the density-dependent cluster model, with the α-nucleus potential from the double-folding model with a realistic NN interaction. Comparison with three semiempirical formulas: the Viola-Seaborg-Sobiczewski formula, the modified Brown formula, and the one based on fission theory. N=165-177; compared theoretical and experimental α-decay half-lives. N=288-342, Z=121; N=292-342, Z=122; calculated correlation between the logarithm of the α-preformation factor, S_α, and the fragmentation potential for odd-odd Z=121 and even-even Z=122 nuclei. ³⁰⁰121, ³⁰²122(α), (¹⁶O), (²⁸Mg), (³²Si), (⁶⁸Ni), (⁷⁶Zn), (⁷⁹Ga), (⁸⁰Ge), (⁸³As), (⁸⁴Se), (⁸⁵Br), (⁸⁶Kr), (⁸⁹Rb), (⁹⁰Sr), (⁹¹Sr), (⁹²Sr), (⁹³Sr), (⁹⁴Sr), (⁹⁶Y), (⁹⁶Zr), (⁹⁹Nb), (¹⁰²Mo); calculated Q values, α-decay and cluster decay half-lives within the double-folding model based on M3Y-Paris NN interaction, unified formula (UF), Horai's scaling law, and the universal decay law (UDL).

doi: 10.1103/PhysRevC.101.024607