Multifragmentation Process in HIC Simulated by Modified Quantum Molecular Dynamics

Liu Hang; Liu Jianye; Zhang Shaoguang; Li Junqing

Chinese Physics C> 1995, Vol. 19> Issue(11) : 1040-1046

Multifragmentation Process in HIC Simulated by Modified Quantum Molecular Dynamics

Institute of modern physics,The Chinese Academy of Sciences,Lanzhou 730000

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Abstract：
The collision dynamics and yields of the multifragmentation in intermediate energy heavy ion collisions are simulated within the frame of the modified quantum molecular dynamics(MQMD ).With this new MQMD,it is found that the obvious improvements about the agreements between the experimental data and the simulating results for the fragment production by means of MDI and Pauli potential are achieved.Meanwhile the different influences of MDI and Pauli potential on the collision dynamics of intermediate energy heavy ion collisions are obtained.Finally the possible reasons for the discrepancies between the experimental data and the present simulating results and remedies of these deficiencies are discussed in detail.

References

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Hubele.J,Kreut.P,Adloff.J.C,et al,Z.iPhys/i,A340（1991）263.[2] J.Aichelin,G.Peilert,A.Bohnet et al,iPhys/i.Rev,C37（1988）2451.[3] L.Wilet,E.M.Henley,M.Kraft,et al,iNucl/i.iPhys/i,A282（1977）341.[4] Liu JianYe,Zhang ShaoGuang,Z.iPhys/i,A345（1994）31.[5] C.Ngo,H.S.Leray,M.E.Spina,iNucl/i.iPhys/i,A499（1989）148.[6] C.Dorso,S.Duart,J.Randrup,iPhys/i.iLett/i,B188（1987）287.[7] G.Peilert,J.Randrup,H.Stocker et al,iPhys/i.iLett/i,B260（1991）271.

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Liu Hang, Liu Jianye, Zhang Shaoguang and Li Junqing. Multifragmentation Process in HIC Simulated by Modified Quantum Molecular Dynamics[J]. Chinese Physics C, 1995, 19(11): 1040-1046.

Liu Hang, Liu Jianye, Zhang Shaoguang and Li Junqing. Multifragmentation Process in HIC Simulated by Modified Quantum Molecular Dynamics[J]. Chinese Physics C, 1995, 19(11): 1040-1046. 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

Multifragmentation Process in HIC Simulated by Modified Quantum Molecular Dynamics

Corresponding author: Liu Hang,

Institute of modern physics,The Chinese Academy of Sciences,Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-11-15

Abstract: The collision dynamics and yields of the multifragmentation in intermediate energy heavy ion collisions are simulated within the frame of the modified quantum molecular dynamics(MQMD ).With this new MQMD,it is found that the obvious improvements about the agreements between the experimental data and the simulating results for the fragment production by means of MDI and Pauli potential are achieved.Meanwhile the different influences of MDI and Pauli potential on the collision dynamics of intermediate energy heavy ion collisions are obtained.Finally the possible reasons for the discrepancies between the experimental data and the present simulating results and remedies of these deficiencies are discussed in detail.