Chinese Physics C > 2005, Vol. 29 > Issue(9): 862-865

Transition between P and Q Spaces in Feshbach-Kerman-Koonin Theory

China Institute of Atomic Energy, Beijing 102413, China2 Department of Physics, Zhengzhou University, Zhengzhou 450004, China3 Department of Physics, Guangxi University, Nanning 530004, China4 Department of Physics, Jilin University, Changchun 130023, China5 Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

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Abstract：
The off-diagonal components of Hamiltonian was considered in the Feshbach-Kerman-Koonin multi-step compound theory (FKK-MSC) of the pre-equilibrium reaction to induce the coupling between P and Q spaces in addition to the direct and the multi-step direct reactions. The transition from P to Q chain was introduced in an improved FKK-MSC formula, which can give a unified expression for FKK-MSC theory of pre-equilibrium reaction and Hauser-Feshbach model of the compound nucleus reaction (CN). The FKK-MSC theory was further refined. The calculated results shows that after considered the transition from P to Q chain, the FKK-MSC cross sections become smaller and the CN cross sections become greater than former analyses and they give a good agreement with the experimental results.

References

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SU Zong-Di, LI Bao-Xian, CAO Tian-Guang, WANG Shu-Nuan, LIU Jian-Feng, HUANG Zong-Fu, ZHU Yao-Yin, LI Zhi-Wen, ZHANG Ben-Ai and Transition between P and Q Spaces in Feshbach-Kerman-Koonin Theory[J]. Chinese Physics C, 2005, 29(9): 862-865.

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Received: 2004-08-17
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

Transition between P and Q Spaces in Feshbach-Kerman-Koonin Theory

Corresponding author:SU Zong-Di,

China Institute of Atomic Energy, Beijing 102413, China2 Department of Physics, Zhengzhou University, Zhengzhou 450004, China3 Department of Physics, Guangxi University, Nanning 530004, China4 Department of Physics, Jilin University, Changchun 130023, China5 Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Received Date:2004-08-17
Accepted Date:1900-01-01
Available Online:2005-09-05

Abstract:The off-diagonal components of Hamiltonian was considered in the Feshbach-Kerman-Koonin multi-step compound theory (FKK-MSC) of the pre-equilibrium reaction to induce the coupling between P and Q spaces in addition to the direct and the multi-step direct reactions. The transition from P to Q chain was introduced in an improved FKK-MSC formula, which can give a unified expression for FKK-MSC theory of pre-equilibrium reaction and Hauser-Feshbach model of the compound nucleus reaction (CN). The FKK-MSC theory was further refined. The calculated results shows that after considered the transition from P to Q chain, the FKK-MSC cross sections become smaller and the CN cross sections become greater than former analyses and they give a good agreement with the experimental results.