Causal-Horizon Scaling of Quarkonium Suppression in Strong QCD Fields
Fuente:
arXiv
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2026
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866915988633550848 |
|---|---|
| author | Yang, Yi |
| author_facet | Yang, Yi |
| contents | The simultaneous observation of strong sequential suppression and small azimuthal anisotropy for bottomonium states provides a stringent constraint on the time scale and geometry of the suppression mechanism. We propose an early-time geometric survival mechanism in which the strong pre-equilibrium color field induces a local proper acceleration and an associated Unruh causal scale. The survival probability is modeled by a WKB-motivated exponential controlled by the ratio of the quarkonium radius to the causal horizon. Combined with CGC-inspired centrality and energy scaling, the framework gives a compact description of the $Υ(1S, 2S, 3S)$ suppression pattern and predicts a definite RHIC/LHC energy dependence. Because the suppression acts as a local scalar factor before hydrodynamic response develops, it naturally produces little additional quarkonium momentum anisotropy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_24623 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Causal-Horizon Scaling of Quarkonium Suppression in Strong QCD Fields Yang, Yi High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory The simultaneous observation of strong sequential suppression and small azimuthal anisotropy for bottomonium states provides a stringent constraint on the time scale and geometry of the suppression mechanism. We propose an early-time geometric survival mechanism in which the strong pre-equilibrium color field induces a local proper acceleration and an associated Unruh causal scale. The survival probability is modeled by a WKB-motivated exponential controlled by the ratio of the quarkonium radius to the causal horizon. Combined with CGC-inspired centrality and energy scaling, the framework gives a compact description of the $Υ(1S, 2S, 3S)$ suppression pattern and predicts a definite RHIC/LHC energy dependence. Because the suppression acts as a local scalar factor before hydrodynamic response develops, it naturally produces little additional quarkonium momentum anisotropy. |
| title | Causal-Horizon Scaling of Quarkonium Suppression in Strong QCD Fields |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2603.24623 |