Decay of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Ba</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>118</mml:mn><mml:mo>,</mml:mo><mml:mn>122</mml:mn></mml:mrow></mml:mmultiscripts><mml:mrow><mml:msup><mml:mi/><mml:mrow><mml:mo>*</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>compound nuclei formed in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Kr</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>78</mml:mn><mml:mo>,</mml:mo><mml:mn>82</mml:mn></mml:mrow></mml:mmultiscripts><mml:mrow><mml:mo>+</mml:mo></mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Ca</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>40</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>reactions using the dynamical cluster-decay model of preformed clusters

Application of the preformed clusters based dynamical cluster-decay model (DCM) is made to the recent data on decay of the compound systems $^{118,122}\mathrm{Ba}{}^{*}$ at a relatively low bombarding energy of 5.5 MeV/$A$. The same model has been applied earlier to the intermediate mass fragment (IMF) data of $^{116}\mathrm{Ba}{}^{*}$, observed at medium and higher incident energies. For the heavier $^{118,122}\mathrm{Ba}{}^{*}$ systems, however, a complete mass fragmentation spectrum is observed experimentally. Except for a small narrow region of heavier mass fragments ($8\ensuremath{\leqslant}{Z}_{L}\ensuremath{\leqslant}15$), the DCM gives an overall reasonable description of the observed data on both the intermediate mass fragments and the fusion-fission cross-sections, whereas the statistical model calculations based on BUSCO and GEMINI codes describe the intermediate mass fragment data and the heavier mass fragment and fusion-fission data, respectively. Within the DCM (with preformation factor ${P}_{0}=1$), the possibility of non-compound-nucleus decay contributing to the region $8\ensuremath{\leqslant}{Z}_{L}\ensuremath{\leqslant}15$ of heavier mass fragments is also explored. All three models use the maximum angular momentum ${\ensuremath{\ell}}_{\mathrm{max}}$ as a fitting parameter, which in the DCM is fixed via a neck-length parameter for the penetrability $P\ensuremath{\rightarrow}1$.

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