Regular Article - Theoretical Physics
Hadronic rescattering in pA and AA collisions
Theoretical Particle Physics, Department of Astronomy and Theoretical Physics, Lund University, Sölvegatan 14A, 223 62, Lund, Sweden
Accepted: 27 June 2021
Published online: 9 July 2021
In a recent article we presented a model for hadronic rescattering, and some results were shown for collisions at LHC energies. In order to extend the studies to and collisions, the Angantyr model for heavy-ion collisions is taken as the starting point. Both these models are implemented within the general-purpose Monte Carlo event generator Pythia, which makes the matching reasonably straightforward, and allows for detailed studies of the full space–time evolution. The rescattering rate is significantly higher than in , especially for central collisions, where the typical primary hadron rescatters several times. We study the impact of rescattering on a number of distributions, such as and spectra, and the space–time evolution of the whole collision process. Notably rescattering is shown to give a significant contribution to elliptic flow in and , and to give a nontrivial impact on charm production.
© The Author(s) 2021
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