English

Lindblad-driven quarkonium production in heavy-ion collisions

High Energy Physics - Phenomenology 2026-05-20 v1 High Energy Physics - Experiment Nuclear Experiment Nuclear Theory

Abstract

We study the production of the conventional quarkonium states in ultrarelativistic heavy-ion collisions using an open quantum system framework based on the Lindblad equation. Starting from the complex-valued in-medium potential, we derive the dissociation temperature and thermal decay width for each state, and compute their survival probabilities for a system undergoing Bjorken expansion. We then extend the framework to include recombination from thermalized charm and bottom quarks in the quark-gluon plasma, deriving a coalescence model for quarkonia from the Lindblad equation under the adiabatic approximation. The methodology provides a unified, first-principles-inspired description of suppression and recombination for both charmonium and bottomonium.

Keywords

Cite

@article{arxiv.2605.19985,
  title  = {Lindblad-driven quarkonium production in heavy-ion collisions},
  author = {Néstor Armesto and Miguel Ángel Escobedo and Elena G. Ferreiro and Víctor López-Pardo},
  journal= {arXiv preprint arXiv:2605.19985},
  year   = {2026}
}

Comments

9 pages, 11 figures