| Isoscaling Behaviour in the Isospin-Dependent Quantum Molecular Dynamics Model |
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| 作者姓名： | 田文栋 马余刚 蔡翔舟 陈金根 陈金辉 方德清 郭威 马春旺 马国亮 沈文庆 王鲲 魏义彬 颜廷志 钟晨 左嘉旭 |
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| 作者单位： | [1]ShanghaiInstituteofAppliedPhysics,ChineseAcademyofSciences,POBox800-204,Shanghai201800 [2]ShanghaiInstituteofAppliedPhysics,ChineseAcademyofSciences,POBox800-204,Shanghai201800／／GraduateSchooloftheChineseAcademyofSciences,Beijing100039 |
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| 摘 要： | The isoscaling behaviour is investigated in a frame of isospin-dependent quantum molecular dynamics models. The isotopic yields ratio Y2/Y1 for reactions ^48Ca ^48Ca and ^40 Ca ^4oCa at different entrance channels are simulated and presented, the relationship between the isoscaling parameter and the entrance channel is analysed, the results show that a and β reduce with the rise of incident energies and increase with the impact parameter b, which can be attributed to the temperature varying of the pre-fragments in different entrance channels. The relation of a and symmetry-term coefficient Csym reveals that the chemical potential difference △μ is sensitive to thesymmetry-term coefficient Csym, and raises with the increasing Csym.
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| 关 键 词： | 等腰性质 同位旋 量子力学模型 分子物理学 |
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