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Chinese Physics C> 1998, Vol. 22> Issue(9) : 795-802 

The Study of Giant Dipole Resonance in Hot Nuclei in the 40Ar+93Nb Reaction at 25MeV/u

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

  • Gamma rays, light charged particles and evaporation residues emitted from hot nuclei formed in the 40Ar+93Nb reaction at 25MeV/u have been measured.The initial excitation energies of the hot nuclei can be deduced from the velocity of the incomplete fusion residues by applying a massive transfer model. The integrated γ multiplicity, after bremsstrahlung substraction, is constant as a function of excitation Statistical calculations were performed by using the CASCADE code, and compared with experimental data. The main effects which can lead to the saturation of the GDR γmultiplicity at high excitation energies were discussed. The experimental data can be fitted by assuming a cutoff of γ emission from the resonance above an excitation energy of approximate 250MeV.
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    [1] Gaardhoje J J.Annu.Rev.Nucl.PartSci.,1992,42:483-515[2]Bracco A et al.Phys.Rev.Lett,1989,62:2080-2083[3]Enders Getal.Phys.Rev.Lett,1992,69:249-252[4]Yosida K et al.Phys.Lett.,1990,B245:7-12[5]Kasagi J et al.Nucl.Phys.,1991,A538:585c-592c[6]Gaardhoje J J et al.Phys.Rev.Lett.,1987,59:1409-1412[7]Kasagi J,Yosida K.Nucl.Phys.,1994,A569:195c-202c[8]Le FaouJ Hetal.Phys.Rev.Lett,1994,72:3321-3324[9]Chomaz Ph.Nucl.Phys.,1994,A569:203c-214c[10]Bortignon P F et al.Phys.Rev.Lett,1991,67:3360-3363[11]Liu Xin etal.Atomic Energy Science and Technology（inChinese）,1993,27:512-517（刘昕等原子能科学与技术，1993,27:512-517）[12]Nelson W R et al.The EGS4 Code System,Stand ford Linear Accelerator Center Report SLAC-265,1985[13]Nifenecker H et al.Nucl Phys.,1985,A447:533c-554[14]Viola V E et al.Phys.Rev.,1982,C26:178-188[15]M Gonin et al.Nucl.Phys.,1989,A495:139c-154[16]Ormand W E et al.Phys.Rev.,1989,C40:1510-1512[17]Wada R et al.Phys.Rev.,1989,C39:497-515[18]Natowitz J B et al.Nucl.Phys.,1992,A538:263c-278c[19]Puhlhofer F Nucl.Phys.,1979,A280:267-284[20]Chakrabary D R et al.Phys.Rev.,1987,C36:1886-1895[21]Bortigon P F et al.Nucl.Phys.,1995,A583:101c-104c[22]Bortigon P F et al.Nucl.Phys.,1986,A468:149

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Zhang Baoguo, Wang Sufang, Duan Limin, Wen Wanxin, Jin Genming, Zheng Jiwen, Li Zuyu, He Zhiyong, Xiao Zhigang and Wang Hongwei. The Study of Giant Dipole Resonance in Hot Nuclei in the 40Ar+93Nb Reaction at 25MeV/u[J]. Chinese Physics C, 1998, 22(9): 795-802.
Zhang Baoguo, Wang Sufang, Duan Limin, Wen Wanxin, Jin Genming, Zheng Jiwen, Li Zuyu, He Zhiyong, Xiao Zhigang and Wang Hongwei. The Study of Giant Dipole Resonance in Hot Nuclei in the 40Ar+93Nb Reaction at 25MeV/u[J]. Chinese Physics C, 1998, 22(9): 795-802. shu
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Received: 1900-01-01
Revised: 1900-01-01
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The Study of Giant Dipole Resonance in Hot Nuclei in the 40Ar+93Nb Reaction at 25MeV/u

    Corresponding author: Zhang Baoguo,
  • 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: Gamma rays, light charged particles and evaporation residues emitted from hot nuclei formed in the 40Ar+93Nb reaction at 25MeV/u have been measured.The initial excitation energies of the hot nuclei can be deduced from the velocity of the incomplete fusion residues by applying a massive transfer model. The integrated γ multiplicity, after bremsstrahlung substraction, is constant as a function of excitation Statistical calculations were performed by using the CASCADE code, and compared with experimental data. The main effects which can lead to the saturation of the GDR γmultiplicity at high excitation energies were discussed. The experimental data can be fitted by assuming a cutoff of γ emission from the resonance above an excitation energy of approximate 250MeV.

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