A MEMORY PARTICLE MODEL IN STUDY OF PRE-EQUILIBRIUM EMISSION

MIAO Rong-Zhi

Chinese Physics C> 1989, Vol. 13> Issue(10) : 942-955

A MEMORY PARTICLE MODEL IN STUDY OF PRE-EQUILIBRIUM EMISSION

MIAO Rong-Zhi ^,

Institute of Modern Physics,Academia Sinica,Lanzhou

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Abstract：
Exciton of a composite system at high energy is divided into two subsystems which consist of memory particle m and non-memory particle r.After introducing a_n the collision factor of m-particle in state n,the coupled master equitions of the occupation probability of stateangle of m-particle and r-particle are established.The expression of state density,taking into account the distinquishability between m-particle and r-particle,and the formulas of the rate of β-particle emission of m-system and r-system in state n are also given.The calculation results show that the fit with experimental data is improved conspicuously and is much better than that obtained from the generalized exciton mdel.

References

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G. Mantzouranis et al.,Phys. Lett, 57B(1975), 220.[2] G. Mantzouranis et al., Z.phys., A276, (1976), 145[3] G. Mantzouranis et al，phys. Lett，63B(1976), 25.[4] Xujun et al., Z.phys., A324(1986), 153.[5] J. Ai.Aermans et al., phys. Rev.,C22,(1980),73.[6] S. N.Gupta. unpublished.[7] 王竹溪，“统计物理导论"，125 -132(高等教育出版社，北京，1965).[8] 缪容之等，“记亿拉子模型中碰撞比“，的数值获取”宁波大学学报(自然科学版待发表).[9] D. Hertnsdort et al., ZFK-227(1974).[10] 缪容之等，中国科学院近代物理研究所内部资料，(未发表).[11] 陆中道等，原子核物理,5(1983),131.[12] F. E. Berttand et al，Oak Ridge National Laboratory Report OR NL-4450(1969).[13] C.K.Cline,Nucl. phys.,A193(1972), 417.

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MIAO Rong-Zhi. A MEMORY PARTICLE MODEL IN STUDY OF PRE-EQUILIBRIUM EMISSION[J]. Chinese Physics C, 1989, 13(10): 942-955.

MIAO Rong-Zhi. A MEMORY PARTICLE MODEL IN STUDY OF PRE-EQUILIBRIUM EMISSION[J]. Chinese Physics C, 1989, 13(10): 942-955. 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 MEMORY PARTICLE MODEL IN STUDY OF PRE-EQUILIBRIUM EMISSION

MIAO Rong-Zhi ^,

Corresponding author: MIAO Rong-Zhi,

Institute of Modern Physics,Academia Sinica,Lanzhou

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1989-10-05

Abstract: Exciton of a composite system at high energy is divided into two subsystems which consist of memory particle m and non-memory particle r.After introducing a_n the collision factor of m-particle in state n,the coupled master equitions of the occupation probability of stateangle of m-particle and r-particle are established.The expression of state density,taking into account the distinquishability between m-particle and r-particle,and the formulas of the rate of β-particle emission of m-system and r-system in state n are also given.The calculation results show that the fit with experimental data is improved conspicuously and is much better than that obtained from the generalized exciton mdel.