Impact of quadrupole deformation on intermediate-energy heavy-ion collisions

TL;DR

This paper investigates how quadrupole deformation affects intermediate-energy heavy-ion collisions using simulations, revealing the importance of initial geometry on particle production and flow, and offering insights into nuclear structure and reaction dynamics.

Contribution

It introduces a detailed simulation study of deformed nuclei collisions, highlighting the role of initial eccentricity and orientation in collision outcomes.

Findings

Particle multiplicities depend on initial eccentricity.

Anisotropic flows are influenced by nuclear deformation.

Results aid in understanding nuclear structure effects in reactions.

Abstract

This study employs the isospin-dependent Boltzmann-Uehling-Uhlenbeck model to simulate intermediate-energy heavy-ion collisions between prolate nuclei $^{24}$Mg. The emphasis is on investigating the influence of centrality and orientation in several collision scenarios. The final-state particle multiplicities and anisotropic flows are primarily determined by the eccentricity and the area of the initial overlap. This not only provides feedback on the collision systems, but also, to some extent, provides a means to explore the fine structure inside deformed nuclei. Additionally, non-polarized collisions have been further discussed. These results contribute to the understanding of the geometric effects in nuclear reactions, and aid in the exploration of other information on reaction systems, such as the equation of state and nuclear high-momentum tail.