Relationship between Measurement of Nuclear Temperature and Energy of Particles

  • Temperature of 5MeV was extracted from double isotope ratios Y6Li/Y7LiY3He/Y4He measured at backward angle in laboratory system in the reaction 30MeV/u 40Ar+nat Ag. It is observed that this temperature increases continuously from 5MeV to 6MeV with the increase of the energy threshold Ecut/A.A Monte Carlo simulation on particle emission process of hot nuclei shows that the average temperature of hot nuclei as emission sources goes up gradually with increasing energies of emitted particles. It is demonstrated that hot nuclei with higher temperature are more probable to emit higher energy particles.
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  • [1] . Albergo S et al.IL Nuovo Cimento,1985,A89:12. Tsang M B et al.Phys.Rev.Lett.,1997,78:38363. Tsang M B et al.Phys.Rev.,1996,C53:R10574. Wada R et al.Phys.Rev.,1997,C55:2275. XI H et al.Phys.Lett.,1998,B431:8—146. XI H et al.Michigan State University,MSUCL–1055,January 19977. Ericson T.Adv.Phys.,1960,9:4258. Awes T C et al.Phys.Rev.,1982,C25:23619. Wada R et al.Phys.Rev.,1989,C39:49710. HE ZhiYong et al.Science in China(Series A),1998,14(11):1228
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HU PeiGang, WU HeYu, JIN GenMing, LI ZuYu, HE ZhiYong, WANG HongWei, FU YanBiao, DUAN LiMin, ZHANG BaoGuo, XIAO ZhiGang and DAI GuangXi. Relationship between Measurement of Nuclear Temperature and Energy of Particles[J]. Chinese Physics C, 2000, 24(9): 818-822.
HU PeiGang, WU HeYu, JIN GenMing, LI ZuYu, HE ZhiYong, WANG HongWei, FU YanBiao, DUAN LiMin, ZHANG BaoGuo, XIAO ZhiGang and DAI GuangXi. Relationship between Measurement of Nuclear Temperature and Energy of Particles[J]. Chinese Physics C, 2000, 24(9): 818-822. shu
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Received: 1999-07-14
Revised: 1900-01-01
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Relationship between Measurement of Nuclear Temperature and Energy of Particles

    Corresponding author: HU PeiGang,
  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Abstract: Temperature of 5MeV was extracted from double isotope ratios Y6Li/Y7LiY3He/Y4He measured at backward angle in laboratory system in the reaction 30MeV/u 40Ar+nat Ag. It is observed that this temperature increases continuously from 5MeV to 6MeV with the increase of the energy threshold Ecut/A.A Monte Carlo simulation on particle emission process of hot nuclei shows that the average temperature of hot nuclei as emission sources goes up gradually with increasing energies of emitted particles. It is demonstrated that hot nuclei with higher temperature are more probable to emit higher energy particles.

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