Transport-based initial conditions for heavy-ion collisions at finite densities
Abstract
We employ the SMASH transport model to provide event-by-event initial conditions for the energy-momentum tensor and conserved charge currents in hydrodynamic simulations of relativistic heavy-ion collisions. We study the fluctuations and dynamical evolution of three conserved charge currents (net baryon, net electric charges, and net strangeness) with a 4D lattice-QCD-based equation of state, NEOS-4D, in the hydrodynamic phase. Out-of-equilibrium corrections at the particlization are generalized to finite densities to ensure the conservation of energy, momentum, and the three types of charges. These theoretical developments are integrated within the X-SCAPE code as a unified framework for studying the nuclear matter properties in the Beam Energy Scan program.
Keywords
Cite
@article{arxiv.2510.06996,
title = {Transport-based initial conditions for heavy-ion collisions at finite densities},
author = {H. Roch and G. Pihan and A. Monnai and S. Ryu and N. Senthilkumar and J. Staudenmaier and H. Elfner and B. Schenke and J. H. Putschke and C. Shen and S. A. Bass and M. Chartier and Y. Chen and R. Datta and R. Dolan and L. Du and R. Ehlers and R. J. Fries and C. Gale and D. A. Hangal and B. V. Jacak and P. M. Jacobs and S. Jeon and Y. Ji and F. Jonas and M. Kordell and A. Kumar and R. Kunnawalkam-Elayavalli and J. Latessa and Y. -J. Lee and M. Luzum and A. Majumder and S. Mak and A. Mankolli and C. Martin and H. Mehryar and T. Mengel and C. Nattrass and J. Norman and M. Ockleton and C. Parker and J. -F. Paquet and G. Roland and L. Schwiebert and A. Sengupta and M. Singh and C. Sirimanna and R. A. Soltz and I. Soudi and Y. Tachibana and J. Velkovska and G. Vujanovic and X. -N. Wang and X. Wu and J. Zhang and W. Zhao},
journal= {arXiv preprint arXiv:2510.06996},
year = {2026}
}
Comments
17 pages, 12 figures