Energy Correlations between Fragments and Light Charged Particles in Reaction of 25MeV/u 40Ar+115In

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WANG Jin-Chuan, ZHAN Wen-Long, GUO Zhong-Yan, XI Hong-Fei, ZHOU Jian-Qun and ZHAO You-Xiong. Energy Correlations between Fragments and Light Charged Particles in Reaction of 25MeV/u 40Ar+115In[J]. Chinese Physics C, 2001, 25(2): 115-120.
WANG Jin-Chuan, ZHAN Wen-Long, GUO Zhong-Yan, XI Hong-Fei, ZHOU Jian-Qun and ZHAO You-Xiong. Energy Correlations between Fragments and Light Charged Particles in Reaction of 25MeV/u 40Ar+115In[J]. Chinese Physics C, 2001, 25(2): 115-120. shu
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Received: 1999-12-16
Revised: 1900-01-01
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Energy Correlations between Fragments and Light Charged Particles in Reaction of 25MeV/u 40Ar+115In

    Corresponding author: WANG Jin-Chuan,
  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Abstract: The correlations between the emitted fragments at θlab=15°and the light charged particles(LCPs) at the close geometry configuration in the reaction of 25MeV/u 40Ar+115In were measured. The energy correlations between fragments (4≤Zf≤14) and the LCPs including proton, deuterium, tritium and a particle as well as the energy spectra of the LCPs were obtained. The result shows the existence of sequential decay mechanism. It is found that the peak position of angular correlation is at the small angles and the most probable correlation angle is at 2°or so; The peak positions of the two components in the energy spectra of LCPs increase gradually with the mass of correlated partner; The lighter primaly products are more easier to be excited and decay to IMFs and the LCPs. In the Sequential decay, the yield of the LCPs with more heavier mass is higher than that of the lighter LCPs. The result reveals that the total correlation yield ratios summed over the fragments of Zf=4—14 are 1: 1. 3: 1. 78: 7. 57 for proton, deuterium, tritium and a particles, respectively.

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