1. Formation, dissociation and regeneration of charmonia within microscopic Langevin simulations
- Author
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Oei, Naomi, Krenz, Nadja, Torres-Rincon, Juan, van Hees, Hendrik, and Greiner, Carsten
- Subjects
High Energy Physics - Phenomenology ,Nuclear Theory - Abstract
We present a microscopic and dynamical model to study the formation, as well as dissociation and recombination processes of charmonium states in a heat bath at constant temperature and volume. Within this classical approach, the heavy quarks are described as Brownian particles in a background medium of light constituents and can therefore be described in terms of a Fokker-Planck equation with constant transport coefficients, which is then materialized through with relativistic Langevin simulations. The heavy quarks interact classically over a Coulomb-like screened potential to form a bound state if the relative energy of the pair becomes negative. Dissociation of bound states are possible as a result of screening effects of the potential as well as through scatterings with plasma particles. We demonstrate the full equilibration of the system and show that, for tuning the coupling constant, the obtained equilibrium charmonium yields are in accordance with the Statistical Hadronization Model., Comment: 11 pages, 9 figures
- Published
- 2024