A DYNAMICAL METHOD IN DEEP IN ELASTIC COLLISION OF HEAVY IONS

ZHONG Ji-Quan; GE Ling-Xiao; LIU Jian-Ye; YU Xian

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2024年10月30日

Chinese Physics C> 1983, Vol. 7> Issue(5) : 598-604

A DYNAMICAL METHOD IN DEEP IN ELASTIC COLLISION OF HEAVY IONS

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Abstract：
A method correlating the dynamical equations with the diffusion equations is developed in this paper to explain the dissipations and fluctuations of heavy ion collisions. Considering the degrees of freedom about the relative motion, rotation and asymmetric mass, the relation between the frictional and diffusion tensors is obtained.
Some imformations of deep inelastic collisions in three reaction systems are obtained by solving coupling equations numerically. The calculated results show that there are orbiting effects in the reaction systems of ⁸⁶Kr(8.18MeV/A)+¹⁶⁶Er and ⁸⁴Kr(8.5MeV/A)+¹⁶⁵Ho and there is strong focusing effect in the reaction system of ¹³⁶Xe(8.31MeV/A)+²⁰⁹Bi. But the calculated results are in agreement with the experimental data only for larger partial waves. The nuclear force and diffusion coefficients must be studied further.

References

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D. E. H. Gross et a,1.. Phys. lett., 48B(1974), 3f1}.[2] 近代物理研究所科学技术报告汇编第二集(1976),51.[3] J. Bondorf et al., Phys. Report, 15C(1974), 83.[4] J. Wilczynski et al., Nucl. Phys., A264(1976), 11}.[5] 吴国华,钟纪泉、葛凌霄,高能物理与核物理,1(1977),83,[6] 葛凌霄,吴国华,刘建业,高能物理与核物理,3(1979),760,[7] 钟纪泉,高能物理与核物理,4(1980),744.[8] S. Grosemann and H. J. grappe, Z. Physik, AD98(1980), 41.[9] G. Wolscnin and Norenberg, Phys. Rev. Lett., 41(1978), 691.[10] S. Ayik et al.. Z. Physik, A286(1978), 271.[11] D. H. E. Gross, R.. Beck, Phys. Lett., 47B(1973), 143.[12] G. Rndolf et al., Energy-Lose And Nucleon Exchange In The Reaction of 86Kr with 166Er GSI-VP-12-78.

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ZHONG Ji-Quan, GE Ling-Xiao, LIU Jian-Ye and YU Xian. A DYNAMICAL METHOD IN DEEP IN ELASTIC COLLISION OF HEAVY IONS[J]. Chinese Physics C, 1983, 7(5): 598-604.

ZHONG Ji-Quan, GE Ling-Xiao, LIU Jian-Ye and YU Xian. A DYNAMICAL METHOD IN DEEP IN ELASTIC COLLISION OF HEAVY IONS[J]. Chinese Physics C, 1983, 7(5): 598-604. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

A DYNAMICAL METHOD IN DEEP IN ELASTIC COLLISION OF HEAVY IONS

Corresponding author: ZHONG Ji-Quan,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1983-10-05

Abstract: A method correlating the dynamical equations with the diffusion equations is developed in this paper to explain the dissipations and fluctuations of heavy ion collisions. Considering the degrees of freedom about the relative motion, rotation and asymmetric mass, the relation between the frictional and diffusion tensors is obtained.
Some imformations of deep inelastic collisions in three reaction systems are obtained by solving coupling equations numerically. The calculated results show that there are orbiting effects in the reaction systems of ⁸⁶Kr(8.18MeV/A)+¹⁶⁶Er and ⁸⁴Kr(8.5MeV/A)+¹⁶⁵Ho and there is strong focusing effect in the reaction system of ¹³⁶Xe(8.31MeV/A)+²⁰⁹Bi. But the calculated results are in agreement with the experimental data only for larger partial waves. The nuclear force and diffusion coefficients must be studied further.