The influence of the neutron skin and the asymmetry energy on the π^-/π⁺ ratio

2018/08/29 by C. Hartnack, Hartnack, C., A. Le Fèvre +5
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1808.09868

openalex publication_date 2018/08/29 · openalex created_date 2018/09/07 · openalex updated_date 2026/07/28

Abstract

We use the Isospin Quantum Molecular Dynamics model (IQMD) to analyze the centrality dependence of the isospin ratio of pions, π^-/π⁺. We find that the density dependence of the asymmetry potential, the Pauli blocking of the Δ-decay and the thickness of the neutron skin influence in different ways this observable. Using the centrality dependence of this ratio at different beam energies we can disentangle the different contributions and open the way for their experimental determination.

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