https://doi.org/10.1051/epjconf/202429601019
Theoretical developments on the initial state in relativistic particle collisions
1 Department of Physics, University of Jyväskylä, P.O. Box 35, 40014 University of Jyväskylä, Finland
2 Helsinki Institute of Physics, P.O. Box 64, 00014 University of Helsinki, Finland
* e-mail: heikki.mantysaari@jyu.fi
Published online: 26 June 2024
We discuss recent progress towards developing accurate initial state descriptions for heavy ion collisions focusing on weak coupling based approaches, that enable one to constrain the high-energy structure of nuclei from deep inelastic scattering or proton-nucleus collisions. We review recent developments to determine the event-by-event fluctuating nuclear geometry, to describe gluon saturation phenomena at next-to-leading order accuracy, and to include longitudinal dynamics to the initial state descriptions.
© The Authors, published by EDP Sciences, 2024
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