CALCULATION OF INTERACTION TIMES AND ANALYSIS OF TRANSPORT COEFFICIENTS IN HEAVY-IONS INDUCED DEEP INELASTIC COLLISIONS

GE LING-XIAO; WU GUO-HUA LIU; JIAN-YE

Chinese Physics C> 1979, Vol. 3> Issue(6) : 760-768

CALCULATION OF INTERACTION TIMES AND ANALYSIS OF TRANSPORT COEFFICIENTS IN HEAVY-IONS INDUCED DEEP INELASTIC COLLISIONS

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Abstract：
The interaction times of various partial waves for heavy-ions induced deep inelastic collisions（DIC）of six reaction systems are calculated on the basis of elassical dynamics method.The resulting times are related to the energy and angular momen-tum dissipations.The order of magnitude of the interaction times for DIC is about 10^-22-4×10^-21sec.The Fokker-Planck equation may be correlated with the classical dynamic equation through the interaction times.The interaction times of various partial waves are applied to determine the mass（or element）transport coefficients of various partial waves from experimental mass（or element）distributions.The correla-tion between mass transport coefficients and excitation energies and angular momentum dissipations are discussed.The mechanism of the tangential and radial frictions are analyzed.

References

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L. G. Moretto, R. Schmitt. European Conference on Nuclear Physics with Heavy-Ions (1976) CAEN (France), C5-109.[2] J. Galin, European on Nuclear Physics with Heavy-Ions CAEN (France), C5-83.[3] J. R, Huizenga et al. Phys. Rev. Lett., 37(1976). 885.[4] 徐躬耦，高能物理与核物理，2 (1978), 359.[5] W. Nrenberg, Z. Phys., A274(1975), 241;A276(1976), 84.[6] H. Hofmman, Nucl, Phys., A275(1977), 464.[7] S. Ayik, Phys. Lett., 63B(1976), 22.[8] W. Norenberg et al., Z, Phys., A284(1978), 209.[9] J. R. Fuizenga et al., Phys. Rev., C16(1977), 623.[10] 吴国华、钟纪泉、葛凌霄，高能物理与核物理，1(1977), 83.[11] W. Norenberg Phys. Lett., 52B(1974)，289.[12] 徐树威，高能物理与核物理，待发表.[13] J. Galin et al., Z. Physik, A27B(1976),347.[14] C. Ngo et al., Nucl. Phys., A267(1976), 181.[15] A. G. Artaikh et al., Nucl. Phys., A215(1973),91.[16] C. Ngo et al., Z. Physik, A283(1977). 161.

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GE LING-XIAO, WU GUO-HUA LIU and JIAN-YE. CALCULATION OF INTERACTION TIMES AND ANALYSIS OF TRANSPORT COEFFICIENTS IN HEAVY-IONS INDUCED DEEP INELASTIC COLLISIONS[J]. Chinese Physics C, 1979, 3(6): 760-768.

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Received: 1978-08-04
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

CALCULATION OF INTERACTION TIMES AND ANALYSIS OF TRANSPORT COEFFICIENTS IN HEAVY-IONS INDUCED DEEP INELASTIC COLLISIONS

Received Date: 1978-08-04
Accepted Date: 1900-01-01
Available Online: 1979-12-05

Abstract: The interaction times of various partial waves for heavy-ions induced deep inelastic collisions（DIC）of six reaction systems are calculated on the basis of elassical dynamics method.The resulting times are related to the energy and angular momen-tum dissipations.The order of magnitude of the interaction times for DIC is about 10^-22-4×10^-21sec.The Fokker-Planck equation may be correlated with the classical dynamic equation through the interaction times.The interaction times of various partial waves are applied to determine the mass（or element）transport coefficients of various partial waves from experimental mass（or element）distributions.The correla-tion between mass transport coefficients and excitation energies and angular momentum dissipations are discussed.The mechanism of the tangential and radial frictions are analyzed.