Boltzmann-Langevin One-Body dynamics for fermionic systems

TL;DR

This paper introduces a comprehensive Boltzmann-Langevin transport model for fermionic systems, effectively capturing fluctuations in phase space to better describe unstable and dissipative nuclear collision processes.

Contribution

It presents a full implementation of the Boltzmann-Langevin equation tailored for fermionic systems, emphasizing phase space fluctuations over traditional subspace projections.

Findings

Enhanced modeling of fragment formation in hot nuclear systems

Improved description of transparency in nucleus-nucleus collisions

Effective simulation of instability-driven processes

Abstract

A full implementation of the Boltzmann-Langevin equation for fermionic systems is introduced in a transport model for dissipative collisions among heavy nuclei. Fluctuations are injected in phase space and not, like in more conventional approaches, as a projection on suitable subspaces. The advantage of this model is to be specifically adapted to describe processes characterised by instabilities, like the formation of fragments from a hot nuclear system, and by dissipation, like the transparency in nucleus-nucleus collisions.