Study on the Decay Dynamics of Hot Nuclei

ZENG XiangHua; ZHANG FengShou; LUO YiXiao

Chinese Physics C> 2000, Vol. 24> Issue(6) : 535-540

Study on the Decay Dynamics of Hot Nuclei

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000,China

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Abstract：
With in the frameworu of the three-dimensional Vlasov equation,the dynamical evolution of highly compressed nuclei with high thermal excitation energy has been discussed. The distributions of particles in the space are uniform, while in the momentum space are Woods-Saxon distribution. The effects of initial conditions, temperature parameter and density, on the hot decay are great. The effect of the density on the hot decay is more important than the temperature parameter. For the same initial condition,the hot nuclei is more likely to decay in the hard potential than in the soft potential.

References

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Bertsch G. 5iemens P J. Phys. Lett.，1983, B126:9[2] Pethick C J, Ravertltall D G. Nucl. Phys.，1987,A471:19c[3] Nordbcck E:, LUO Q Z, CHENG C Y et al.，Nucl. Yhys.，1996 , A61Y7 :105[4] ZHANG FerigShou, Suraud E. Phys. Rev.，1995, 051:3021[5] WONG C l'. Phys. Rev. Lett.，L985, 55:1973[6] Bauer W, I3ertsch G F, Schulz H. Phys. Rev. Lett.,1992, 69:1888[7] LI BaoAn, Gross D H E. Nucl. Phys.，1993, A554:257[8] GE LinRXiao, ZE:VG XiangHua. LIU JianYe et al. High Energy Phys. and Vucl. Phys. (in Chineee)，1990,14:27(葛凌霄，曾祥华，刘建业等.高能物理与核物理，1990.14:27)[9] ZENG XiangHua,GE LingXiao. Z. Physik, 1996,A354:317X

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ZENG XiangHua, ZHANG FengShou and LUO YiXiao. Study on the Decay Dynamics of Hot Nuclei[J]. Chinese Physics C, 2000, 24(6): 535-540.

ZENG XiangHua, ZHANG FengShou and LUO YiXiao. Study on the Decay Dynamics of Hot Nuclei[J]. Chinese Physics C, 2000, 24(6): 535-540. shu

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Received: 1999-04-07
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

Study on the Decay Dynamics of Hot Nuclei

Corresponding author: ZENG XiangHua,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000,China

Received Date: 1999-04-07
Accepted Date: 1900-01-01
Available Online: 2000-06-05

Abstract: With in the frameworu of the three-dimensional Vlasov equation,the dynamical evolution of highly compressed nuclei with high thermal excitation energy has been discussed. The distributions of particles in the space are uniform, while in the momentum space are Woods-Saxon distribution. The effects of initial conditions, temperature parameter and density, on the hot decay are great. The effect of the density on the hot decay is more important than the temperature parameter. For the same initial condition,the hot nuclei is more likely to decay in the hard potential than in the soft potential.