2025/06/18 by Matteo Vorabbi, Vorabbi, Matteo, Michael Gennari +7
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Magnetic confinement fusion research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2506.15406
openalex publication_date 2025/06/18 · openalex created_date 2025/10/18 · openalex updated_date 2026/07/28
We present the first results of a comprehensive microscopic approach to describe nucleus-nucleus elastic collisions by means of an optical potential derived at first order in multiple-scattering theory and computed by folding the projectile and target nuclear densities with the nucleon-nucleon t matrix, which describes the interaction between each nucleon of the projectile and each nucleon of the target. Chiral interactions are consistently used in the calculation of the t matrix and of the nonlocal nuclear densities, which are computed within the ab initio no-core shell model. Cross sections calculated for α collisions on 12C and 16O at projectile energies in the range 100-300 MeV are presented and compared with available data. For momentum transfer q up to about 1.0 fm-1 our results are in good agreement with the experimental data, whereas for higher momenta a reduction of the imaginary contributions is needed.