Giant Composite System Formation and Decay in Strongly Damped Collisions with Deformed Nuclei
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Graphical Abstract
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Abstract
Three different collision modes ( Bellybelly， Bellytip and Tiptip) of the deformed uranium nucleus 238U bombarding the deformed 238U in strongly damped reaction at the incident energy 980 MeV has been investigated based on the improved quantum molecular dynamics (ImQMD) model. The formation and properties of the formed composite system during the reaction process were carefully studied including the lifetime， the shape configuration and the angular distribution of primary fragment. It was found that the Bellytip mode is suitable for producing the superheavy fragments， and the composite system has the longest lifetime in this mode.
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