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Statistical nature of cluster emission in nuclear liquid-vapour phase coexistence
Ma, YG(马余刚); Han, DD; Shen, WQ(沈文庆); Cai, XZ(蔡翔舟); Chen, JG; He, ZJ(贺泽君); Long, JL(龙家丽); Ma, GL(马国亮); Wang, K; Wei, YB; Yu, LP; Zhang, HY; Zhong, C(钟晨); Zhou, XF(周星飞); Zhu, ZY(朱志远)
2004
Source PublicationJOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
ISSN0954-3899
Volume30Issue:2Pages:13
AbstractThe emission of nuclear clusters is investigated within the framework of the isospin-dependent lattice gas model and the classical molecular dynamics model. It is found that the emission of an individual cluster which is heavier than proton is almost Poissonian except near the transition temperature at which the system is leaving the liquid-vapour phase coexistence and thermal scaling is observed by the linear Arrhenius plots which are made from the average multiplicity of each cluster versus the inverse of temperature in the liquid-vapour phase coexistence. The slopes of the Arrhenius plots, i.e. the 'emission barriers', are extracted as a function of the mass or charge number and fitted by the formula embodied with the contributions of the surface energy and Coulomb interaction. Good agreements are obtained in comparison with the data for low-energy conditional barriers. In addition, the possible influences of the source size, Coulomb interaction and 'freeze-out' density and related physical implications are discussed.
Indexed BySCI
Language中文
Funding Project应物所项目组
WOS IDWOS:000189182700004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9434
Collection中科院上海应用物理研究所2004-2010年
Recommended Citation
GB/T 7714
Ma, YG,Han, DD,Shen, WQ,et al. Statistical nature of cluster emission in nuclear liquid-vapour phase coexistence[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2004,30(2):13.
APA Ma, YG.,Han, DD.,Shen, WQ.,Cai, XZ.,Chen, JG.,...&Zhu, ZY.(2004).Statistical nature of cluster emission in nuclear liquid-vapour phase coexistence.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,30(2),13.
MLA Ma, YG,et al."Statistical nature of cluster emission in nuclear liquid-vapour phase coexistence".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 30.2(2004):13.
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