Hadron Production and Propagation in Pion-Induced Reactions on Nuclei

2023/01/10 by R. Abou Yassine, J. Adamczewski-Musch, Yassine, R. Abou +225
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2301.03940

openalex publication_date 2023/01/10 · openalex created_date 2023/01/12 · openalex updated_date 2026/07/28

Abstract

Hadron production (π^±, proton, Λ, K_S⁰, K^±) in π^- + C and π^- + W collisions is investigated at an incident pion beam momentum of 1.7~GeV/c. This comprehensive set of data measured with HADES at SIS18/GSI significantly extends the existing world data on hadron production in pion induced reactions and provides a new reference for models that are commonly used for the interpretation of heavy-ion collisions. The measured inclusive differential production cross-sections are compared with state-of-the-art transport model (GiBUU, SMASH) calculations. The (semi-) exclusive channel π^- + A → Λ+ K_S⁰ +X, in which the kinematics of the strange hadrons are correlated, is also investigated and compared to a model calculation. Agreement and remaining tensions between data and the current version of the considered transport models are discussed.

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