Isovector giant dipole resonance mode with an improved propagation approach in the framework of EQMD model

TL;DR

This paper improves the EQMD model by implementing a Monte Carlo method for density integration, enhancing its ability to study isovector giant dipole resonance and potentially more complex heavy ion collision phenomena.

Contribution

The paper introduces a Monte Carlo integral method for density calculations in the EQMD model, expanding its applicability to nuclear matter studies.

Findings

Demonstrates the effectiveness of the improved approach in studying IVGDR.

Shows potential for better modeling of heavy ion collisions.

Enhances the EQMD model's capability for nuclear structure analysis.

Abstract

The Extended Quantum Molecular Dynamics (EQMD) model is one of the few QMD-like transport approaches that can describe the $\alpha$-clustering structure with efficient computational power. However, compared to most QMD-like models, the choice of equation of state (EOS) for nuclear matter is very limited. In this work, a Monte Carlo integral method is employed to calculate the density integration with non-integer exponent. We demonstrate the superiority of our approach by studying the isovector giant dipole resonance (IVGDR). This improvement will be beneficial for the EQMD model to study more valuable effects for heavy ion collisions in the near future.