A Test of Sequential Decay of Hot Nuclei Around 3MeV/u Excitation Energy

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Wu Heyu and Dai Guangxi. A Test of Sequential Decay of Hot Nuclei Around 3MeV/u Excitation Energy[J]. Chinese Physics C, 1994, 18(S1): 5-12.
Wu Heyu and Dai Guangxi. A Test of Sequential Decay of Hot Nuclei Around 3MeV/u Excitation Energy[J]. Chinese Physics C, 1994, 18(S1): 5-12. shu
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Received: 1900-01-01
Revised: 1900-01-01
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A Test of Sequential Decay of Hot Nuclei Around 3MeV/u Excitation Energy

    Corresponding author: Wu Heyu,
  • Institute of Modern Physics,Academia Sinica,Lanzhou 730000

Abstract: The decay properties of excited nuclei corresponding to about 3MeV/u excitation energy formed in incomplete fusion reactions 40Ar(25MeV/u)+209Bi、197Au、159Tb are analysed.The sequential decay of nuclei by large fragments is identified using a minimization procedure of relative velocity difference with coulomb repulsion velocity.It is shown that three fragments originate from two successive independent binary splittings.This result is also supportted by the fact,that the experimental angular distribution of ternary fragments is nicely reproduced by sequential decay.

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