Antiproton-nucleus collisions simulation within a kinetic approach with relativistic mean fields

TL;DR

This paper uses a relativistic kinetic model to simulate antiproton-nucleus collisions, analyzing absorption and annihilation, and extracting optical potential parameters by comparing with experimental data.

Contribution

It introduces a simulation approach combining the Giessen BUU model with relativistic mean fields to study antiproton interactions with nuclei.

Findings

Absorption cross sections match experimental data

Momentum distributions of annihilation products are characterized

Optical potential parameters are extracted successfully

Abstract

The Giessen Boltzmann-Uehling-Uhlenbeck transport model with relativistic mean fields is used to simulate $\bar p$-nucleus collisions. Antiproton absorption cross sections and momentum distributions of annihilation products are calculated by varying the $\bar p$ coupling strength to the mean meson fields. Parameters of the antiproton-nucleus optical potential are extracted from the comparison of the model calculations with experimental data.