Investigating the cluster production mechanism with isospin triggering: Thermal models versus coalescence models

• DOI: 10.48550/arxiv.2210.11699
• Publication Date: 2022-01-01
• Authors: Apiwit Kittiratpa...; Tom Reichert; Pengcheng Li; A. Limphirat; C. Herold; Jan Steinheimer; Marcus Bleicher
• Keywords: Coalescence (physics)

Isospin triggering allows to distinguish coalescence from thermal production of light clusters in heavy ion collisions. Triggering on $Y(π^-) - Y(π^+)$ select very neutron or proton rich final states. The deuteron (cluster) with ($d \propto n \cdot p$) leads then an inverse parabolic dependence the yield $ΔY_π$. In contrast, a model, cluster is independent observation maximum as function $ΔY_π$ provides confirmation mechanism.