2025/03/14 by Tianyang Li, Jiamin Liu, Li, Tianyang +5
Physics and Astronomy · #Dust and Plasma Wave Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Pulsars and Gravitational Waves Research
paper · pdf · doi:10.48550/arxiv.2503.11223
openalex publication_date 2025/03/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the thermal production of the Ωccc baryon in relativistic heavy-ion collisions. Unlike proton-proton collisions, nuclear collisions produce both deconfined matter and abundant charm quark pairs, which can coalesce to form the Ωccc baryon, thereby significantly enhancing its production. We employ the Langevin model and the Instantaneous Coalescence Model (LICM), coupled with hydrodynamic simulations, to study charm quark diffusion and coalescence into the Ωccc baryon in expanding QCD matter. The thermal production of the Ωccc is governed by the charm quark densities and the in-medium wavefunctions of the Ωccc, which determines the coalescence probability for the three charm quarks. We calculate the Ωccc production with realistic charm diffusions and different in-medium wave functions of Ωccc baryon. We find that the production of the Ωccc baryon is sensitive to these factors, which aids in understanding its properties in the hot QCD medium.