Year: 2019
Type: article
Abstract: We investigate properties of strongly interacting matter in a schematic model based on the combined degrees of freedom of a noninteracting hadronic phase and a noninteracting deconfined phase. It is found that, in a finite system, both phases contribute to the thermodynamic state due to fluctuations and that signatures of critical behavior, such as the divergence of statistical quantities, are dampened. The constraint of color neutrality leads to a volume‐dependent shift of the effective critical temperature, which follows a scaling law, independent of the baryochemical potential. According to the model, observable baryon number susceptibilities at a given T and μB strongly depend on the system size. Finally, we compare hadronization conditions from the model with hadrochemical fits to experimental collider data, where a qualitatively similar system size dependence is extracted.
Source: Astronomische Nachrichten
Authors: Christian Spieles, Marcus Bleicher, Carsten Greiner
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2968938939