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Chinese Physics C> 1998, Vol. 22> Issue(9) : 780-786 

Excitation Energy and Temperature of Hot Nucleiin the Reaction of 25 MeV/u 40Ar+93Nb

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

  • The charged particles and residues were correlatively measured by telescopes and PPACs in the reaction of 40Ar+93Nb at incident energy of 25 MeV/u. Energy spectra of αparticles were fitted by three moving sources and the excitation energy of hot nuclei were determined by the TOF of residues and particle multiplicity. Abstracted temperature was correlated thoroughly and the results show that hot nuclei with excitation energy E/A≈4.3MeV and temperature Tinit≈6.9MeV were formed in the reaction The behavior of nuclear matter in various systems was compared and the difference can be seen in the light and heavy reaction system.
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    [1] Bonche P,Levit S,Vautherin D.Nucl.Phys.,1985,A436:265-293[2]Gross D H E.Prog P.Nucl.Phys.,1993,30:155-167[3]Bondorf J B et al.Nucl.Phys.,1995,A444:460-476[4]Hagel Ketal.Nucl.Phys.,1998,A486:429-455[5]Pochodzalla J et al.Phys.Rev.Lett,1995,7:i1040-1043[6]Ma Y G,Siwek A,Peter J et al.Phys.Lett,1997,B8390:41-48[7]Wada R,Fabris D,Hagel K et al.Phys.Rev.,1989,C39:497-515[8]Wu H Y,Jin G M,Li Z Y et al.Nuc.Phys.,1997,A617:385-394

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Duan Limin, Wang Sufang, Zhang Baoguo, Wen Wanxin, Jin Genming, Zheng Jiwen, He Zhiyong, Li Zuyu, Tan Jilian, Xiao Zhigang, Wang Hongwei and WU Heyu. Excitation Energy and Temperature of Hot Nucleiin the Reaction of 25 MeV/u 40Ar+93Nb[J]. Chinese Physics C, 1998, 22(9): 780-786.
Duan Limin, Wang Sufang, Zhang Baoguo, Wen Wanxin, Jin Genming, Zheng Jiwen, He Zhiyong, Li Zuyu, Tan Jilian, Xiao Zhigang, Wang Hongwei and WU Heyu. Excitation Energy and Temperature of Hot Nucleiin the Reaction of 25 MeV/u 40Ar+93Nb[J]. Chinese Physics C, 1998, 22(9): 780-786. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Excitation Energy and Temperature of Hot Nucleiin the Reaction of 25 MeV/u 40Ar+93Nb

    Corresponding author: Duan Limin,
  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1998-09-05

Abstract: The charged particles and residues were correlatively measured by telescopes and PPACs in the reaction of 40Ar+93Nb at incident energy of 25 MeV/u. Energy spectra of αparticles were fitted by three moving sources and the excitation energy of hot nuclei were determined by the TOF of residues and particle multiplicity. Abstracted temperature was correlated thoroughly and the results show that hot nuclei with excitation energy E/A≈4.3MeV and temperature Tinit≈6.9MeV were formed in the reaction The behavior of nuclear matter in various systems was compared and the difference can be seen in the light and heavy reaction system.

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