From nuclei to neutron stars: simple binding energy computer modelling in the classroom (part 1)
From nuclei to neutron stars: simple binding energy computer modelling in the classroom (part 1)
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DOI：
10.1088/1361-6552/abe09d
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发表时间：
2020-07
影响因子：
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通讯作者：
A. Pastore;A. Romero;C. Diget;A. Rios;K. Leech;P. Stokoe
中科院分区：
文献类型：
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作者：
A. Pastore;A. Romero;C. Diget;A. Rios;K. Leech;P. Stokoe
我们提出了一个基于液滴模型的简单练习，让中学生探索数学模型的应用，并对结合能的概念，特别是正结合能的意义有一个直观的理解。使用提供的电子表格作为补充材料，学生可以对模型的不同系数执行简单的操作，以了解模型五项中每一项的作用。学生可以使用电子表格，通过优化与真实原子质量数据的一致性来确定模型参数。这项活动可以作为关于理论模型的讨论的起点，当涉及到描述实验数据时，它们的有效性，以及它们对未知区域的预测能力。
We present a simple activity based on the liquid-drop model which allows secondary school students to explore the uses of mathematical models and gain an intuitive understanding of the concept of binding energy, and in particular the significance of positive binding energy. Using spreadsheets provided as supplementary material, students can perform simple manipulations on the different coefficients of the model to understand the role of each of its five terms. Students can use the spreadsheets to determine model parameters by optimising the agreement with real atomic mass data. This activity can be used as the starting point of a discussion about theoretical models, their validation when it comes to describing experimental data and their predictive power towards unexplored regimes.