Phys.Rev. C 105, 014629 (2022)

P.Kaur, M.Maiti, T.N.Nag, S.Sodaye

Reaction dynamics of the ¹²C+¹⁸¹Ta system near the Coulomb barrier: Evidence of fusion-fission events

NUCLEAR REACTIONS ¹⁸¹Ta(¹²C, 3n)¹⁹⁰Au, (¹²C, 4n)¹⁸⁹Au/^189mAu, (¹²C, 5n)¹⁸⁸Au, (¹²C, 3np)¹⁸⁹Pt, (¹²C, 2nα)¹⁸⁷Ir, (¹²C, 3nα)¹⁸⁶Ir, (¹²C, F)^71mZn/⁷³Se/^74mBr/⁸³Br/^85mY/⁸⁶Y/^93mMo/¹⁰⁴Ag/¹⁰⁷Rh/¹²²Xe/¹³²I/¹³⁵Ce, E=52.0, 57.2, 57.8, 62.263.3, 68.1, 72.7 MeV; measured Eγ, Iγ, σ(E) of evaporation residues and fission fragments, using off-line γ-spectrometry; predicted theoretical σ(E), incomplete fusion (ICF) σ(E) and ICF strength in α-emitting channels; extracted fission fragments mass distribution and dispersion parameters above the Coulomb barrier, influence of mass asymmetry on mass variance observed at normalized energy. ¹⁸⁹Pt; measured T_1/2 of decay of ¹⁸⁹Pt g.s. from γ decay curve, and compared to the literature value. Comparison with theoretical model calculations using EMPIRE3.2.2, and PACE4, and with results of previous experimental data for similar systems. Relevance to understanding of fusion-fission (FF) dynamics.

doi: 10.1103/PhysRevC.105.014629