Effect of the symmetry energy on nuclear stopping and its relation to the production of light charged fragments

TL;DR

This study systematically investigates how symmetry energy influences nuclear stopping and light charged fragment production in heavy-ion collisions, revealing that LCP emission correlates strongly with stopping and can inform about isospin-dependent cross sections.

Contribution

It provides a comprehensive analysis of the effects of symmetry energy and isospin-dependent cross sections on nuclear stopping and fragment emission across various conditions.

Findings

Nuclear stopping depends weakly on symmetry energy but strongly on isospin-dependent cross section.

Light charged particle emission is affected by symmetry energy by more than 10%.

LCP emission correlates with global stopping, useful for probing isospin effects.

Abstract

We present a complete systematics (excitation function, impact parameter, system size, isospin asymmetry, and equations of state dependences) of global stopping and fragment production for heavy-ion reactions in the energy range between 50 and 1000 MeV/nucleon in the presence of symmetry energy and an isospin-dependent cross section. It is observed that the degree of stopping depends weakly on the symmetry energy and strongly on the isospin-dependent cross section. However, the symmetry energy and isospin-dependent cross section has an effect of the order of more than 10% on the emission of light charged particles (LCP's). It means that nuclear stopping and LCP's can be used as a tool to get the information of an isospin-dependent cross section. Interestingly, the LCP's emission in the presence of symmetry energy is found to be highly correlated with the global stopping.