Phys.Rev. C 93, 034316 (2016)

X.-D.Sun, P.Guo, X.-H.Li

Systematic study of α decay half-lives for even-even nuclei within a two-potential approach

RADIOACTIVITY ¹⁴⁶Sm, ^148,150Gd, ^150,152,154Dy, ^152,154,156Er, ^154,156,158Yb, ^{156,158,160,162}Hf, ^{158,160,162,164,166,168}W, ^{166,168,170,172,174,186}Os, ^{166,168,170,172,174,176,178,180,182,184,186,188,190}Pt, ^{172,174,176,178,180,182,184,186,188}Hg, ^{178,180,182,184,186,188,190,192,194,210}Pb, ^{190,192,194,196,198,200,202,204,206,208,210,212,214,216,218}Po, ^{198,200,202,204,206,208,210,212,214,216,218,220,222}Rn, ^{206,208,210,212,214,216,218,220,222,224,226}Ra, ^{214,216,218,220,222,224,226,228,230,232}Th, ^{224,226,228,230,232,234,236,238}U, ^{228,230,232,234,236,238,240,242,244}Pu, ^{238,240,242,244,246,248,250}Cm, ^{240,242,244,246,248,250,252,254}Cf, ^{248,250,252,254,256}Fm, ^252,254,256No, ^254,256,258Rf, ^260,266Sg, ^264,266Hs, ²⁷⁰Ds, ^286,288Fl, ^290,292Lv, ²⁹⁴Og(α); calculated half-lives for α decay of Z=62-118 even-even nuclei using two-potential approach based on isospin-dependent nuclear potential taking into account hindrance factors; deduced parameters of isospin-dependent nuclear potentials and analytic expression of hindrance factors. Comparison with experimental half-lives, and with results from density-dependent cluster model (DDCM) and the generalized liquid drop model (GLDM).

doi: 10.1103/PhysRevC.93.034316