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Chinese Physics C> 1998, Vol. 22> Issue(8) : 684-689 

Time Scsle for Emission of Intermediate Mass Fragments in E/A=30MeV 40Ar+natAg Reaction

  •  Institute of Modern Physics,THe Chinese Academy of Sciences, Lanzhou 730000

  • Fragment-fragment conelation functions have been measured in E/A=30 MeV 40Ar+natAg reaction via the technique of intensity interferometry. Emission times of intermediate mass fragments have been extracted from reduced velocity correlation functions by using the threebody trajectory model. The average emission time of intermediate mass fragments varies with the energy of fragments. It decreases from about 300fm/c for low energy fragments to about 80fm/c for energetic fragments. After subtmcting the contribution of projectile-like fragments, average emission times of mid-rapidity fragments are of the order of 250fm/c for this reaction.It indicates that intermediate mass fragments emitted in this reaction mainly come from sequential binary decays.
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Li Zuyu, Wang Hongwei, He Zhiyong, Dun Limin, Zhang Baoguo, Dai Guangxi, Fu Yanbiao and Jin Genming. Time Scsle for Emission of Intermediate Mass Fragments in E/A=30MeV 40Ar+natAg Reaction[J]. Chinese Physics C, 1998, 22(8): 684-689.
Li Zuyu, Wang Hongwei, He Zhiyong, Dun Limin, Zhang Baoguo, Dai Guangxi, Fu Yanbiao and Jin Genming. Time Scsle for Emission of Intermediate Mass Fragments in E/A=30MeV 40Ar+natAg Reaction[J]. Chinese Physics C, 1998, 22(8): 684-689. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Time Scsle for Emission of Intermediate Mass Fragments in E/A=30MeV 40Ar+natAg Reaction

    Corresponding author: Li Zuyu,
  • Institute of Modern Physics,THe Chinese Academy of Sciences, Lanzhou 730000
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1998-08-05

Abstract: Fragment-fragment conelation functions have been measured in E/A=30 MeV 40Ar+natAg reaction via the technique of intensity interferometry. Emission times of intermediate mass fragments have been extracted from reduced velocity correlation functions by using the threebody trajectory model. The average emission time of intermediate mass fragments varies with the energy of fragments. It decreases from about 300fm/c for low energy fragments to about 80fm/c for energetic fragments. After subtmcting the contribution of projectile-like fragments, average emission times of mid-rapidity fragments are of the order of 250fm/c for this reaction.It indicates that intermediate mass fragments emitted in this reaction mainly come from sequential binary decays.

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