Study on the formation of the composite system of 238U+238U

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WU Xi-Zhen, TIAN Jun-Long, ZHAO Kai, ZHANG Ying-Xun and LI Zhu-Xia. Study on the formation of the composite system of 238U+238U[J]. Chinese Physics C, 2009, 33(S1): 30-32. doi: 10.1088/1674-1137/33/S1/010
WU Xi-Zhen, TIAN Jun-Long, ZHAO Kai, ZHANG Ying-Xun and LI Zhu-Xia. Study on the formation of the composite system of 238U+238U[J]. Chinese Physics C, 2009, 33(S1): 30-32.  doi: 10.1088/1674-1137/33/S1/010 shu
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Received: 2008-10-22
Revised: 1900-01-01
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Study on the formation of the composite system of 238U+238U

    Corresponding author: WU Xi-Zhen,

Abstract: Strongly damped reactions of 238U+238U, at Ecm= 680—1880 MeV have been studied based on the improved quantum molecular dynamics model. We find that at a certain energy region the entrance channel potential is weakly repulsive and the dissipation is very strong after touching configuration, these two effects make the time delay of re-separation for colliding system. The single particle potential well of the transiently formed composite system has Coulomb barrier about 15—20 MeV high at the surface, which makes the excited unbound protons being still embedded in the potential well and moving in a common mono-single particle potential for a period of time and thus restrains from quick decay of the composite system.

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