Speaker
Description
We find a remarkable universality in the experimentally observed transverse momentum spectra in ultrarelativistic nuclear collisions, obtained by removing the global scales of total particle number and mean transverse momentum. This scaling behavior breaks down at large transverse momentum and for very small systems, such as those produced in p-p collisions. We further demonstrate that this universal scaling behavior is compatible with hydrodynamic predictions and, thus, may indicate the onset of a hydrodynamic regime. Our results pave the way for further theoretical and experimental investigations of this novel scaling phenomenon to bring to light the collective and non-collective behavior encoded in the transverse particle spectrum of different collision systems.
This presentation is based on 2406.15208.
| Category | Theory |
|---|---|
| Collaboration (if applicable) | The ExTrEMe Collaboration |
