Appearance of the hindrance to complete fusion in heavy-ion collisions
A. K. NasirovBogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna 141980, RussiaBakhodir KayumovInstitute of Nuclear Physics, Ulugbek, Tashkent 100214, UzbekistanO.K. GanievFaculty of Physics, National University of Uzbekistan, Tashkent 100174, UzbekistanElzod KhusanovFaculty of Physics, National University of Uzbekistan, Tashkent 100174, UzbekistanA. R. YusupovInstitute of Nuclear Physics, Ulugbek, Tashkent 100214, Uzbekistan
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Abstract
The small cross-section of the synthesis of the superheavy elements (SHEs) is caused by the hindrance to complete fusion and small survival probability of the compound nucleus against fission. The hindrance to complete fusion is related with such peculiarities of the entrance channel as the mutual orientation angles of the axial symmetry of the colliding deformed nuclei, their mass (charge) asymmetry, the shell effects in their microscopic structure and orbital angular momentum. The appearance of the hindrance to complete fusion has been analyzed in the framework of the dinuclear system (DNS) model by the description of the experimental data obtained in the reactions of the SHE synthesis.
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