Transport calculations of antiproton-nucleus interactions

TL;DR

This paper extends a transport model to study antiproton-nucleus interactions across various beam momenta, comparing calculations with experimental data to extract optical potential details and exploring nuclear compression effects.

Contribution

The paper introduces an extended Giessen BUU transport model for antiproton interactions and analyzes experimental data to determine the real part of the optical potential.

Findings

Calculated absorption cross sections match experimental data.

Extracted the real part of the antiproton optical potential.

Discussed the potential for nuclear compression by in-flight antiprotons.

Abstract

The Giessen Boltzmann-Uehling-Uhlenbeck transport model is extended and applied to the antiproton-nucleus interactions in a wide beam momentum range. The model calculations are compared with the experimental data on $\bar p$-absorption cross sections on nuclei with an emphasis on extraction of the real part of an antiproton optical potential. The possibility of the cold compression of a nucleus by an antiproton in-flight is also considered.