Sensitivity of elliptical flow in intermediate energy heavy-ion collisions

TL;DR

This paper investigates how various physical factors influence elliptical flow in intermediate energy heavy-ion collisions using Quantum Molecular Dynamics, highlighting the sensitivity of flow observables to these parameters.

Contribution

It provides a detailed analysis of elliptical flow sensitivity to the equation of state, cross sections, and momentum dependence within the QMD model, and compares with experimental data.

Findings

Elliptical flow is highly sensitive to the equation of state and cross sections.

Transition energy decreases with fragment size and larger cross sections.

Experimental data aligns with static hard equation of state and large cross sections.

Abstract

The detailed analysis of excitation function of elliptical flow by taking into account the nature of equation of state, nucleon-nucleon cross sections as well as momentum dependent interactions is performed within Quantum Molecular Dynamics (QMD)model. All the observables are found to sensitive towards the elliptical flow. The transition energy is found to be decrease with increase in the size of the fragment in the presence of static equation of state as well as with large cross sections, while, trend gets opposite when momentum dependent interactions are included. At last, the experimental data is verified with static hard equation of state in the presence of large cross sections.