From nuclei to neutron stars: simple binding energy computer modelling in the classroom (Part 1)

Abstract

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 will subsequently be used to predict the limit of existence of the Segré chart and to find the minimum mass of a neutron star. 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.

arXiv commentPublished Physics Education 56 (3), 035012

References in corpus (9)

• Multi-messenger Observations of a Binary Neutron Star Merger
• Identification of strontium in the merger of two neutron stars
• Quantified limits of the nuclear landscape
• Estimating parameter uncertainty in binding-energy models by the frequency-domain bootstrap
• Reexamining the relation between the binding energy of finite nuclei and the equation of state of infinite nuclear matter
• An introduction to Bootstrap for nuclear physics
• Extrapolating from neural network models: a cautionary tale
• Binding Blocks: building the Universe one nucleus at the time
• A teaching guide of nuclear physics: the concept of bond