Chinese Physics C > 1997, Vol. 21 > Issue(S2): 63-72

Static Theory for Nuclear Multifragmentation I. Phase Transition and Multifragmentation

Institute of Modem Physics, The Chinese Academy of Sciences, Lanzhou, China

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Abstract：
With a density-, temperature-, and momentum-dependent mean field, five different phases of nuclear equation of states (gas, liquid, super-heated liquid, super-cooled gas, and mechanical instability of the spinodal phase) for ¹⁹⁷Au are described. After performing a simulation in coordinate space and in momentum space for these different phases at finite temperature T=6 MeV, all kinds of nuclear clusters are sorted by using the coalescence model. The correlation analysis of the nuclear clusters demonstrates that the muitifragmentation pattern only conies from the mechanical instability of the spinodal phase.
- equation of state,
- mechanical instability of spinodal phase,
- multifragmentation

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Zhang Fengshou and Ge Lingxiao. Static Theory for Nuclear Multifragmentation I. Phase Transition and Multifragmentation[J]. Chinese Physics C, 1997, 21(S2): 63-72.

Zhang Fengshou and Ge Lingxiao. Static Theory for Nuclear Multifragmentation I. Phase Transition and Multifragmentation[J]. Chinese Physics C, 1997, 21(S2): 63-72. shu

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Received: 1996-03-12

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沈阳化工大学材料科学与工程学院沈阳 110142

Static Theory for Nuclear Multifragmentation I. Phase Transition and Multifragmentation

Zhang Fengshou
Ge Lingxiao

Institute of Modem Physics, The Chinese Academy of Sciences, Lanzhou, China

Received Date:1996-03-12

Abstract:With a density-, temperature-, and momentum-dependent mean field, five different phases of nuclear equation of states (gas, liquid, super-heated liquid, super-cooled gas, and mechanical instability of the spinodal phase) for¹⁹⁷Au are described. After performing a simulation in coordinate space and in momentum space for these different phases at finite temperatureT=6 MeV, all kinds of nuclear clusters are sorted by using the coalescence model. The correlation analysis of the nuclear clusters demonstrates that the muitifragmentation pattern only conies from the mechanical instability of the spinodal phase.