Speaker
Description
Femtoscopic measurements are sensitive to the spatial and temporal characteristics of the particle emitting-source, allowing us to probe the properties of the matter created in heavy-ion collisions. If QCD transition takes place, the time scale for pion emission is expected to increase significantly. Therefore, it will help us understand the properties of the QGP and the nature of the QCD phase transition.
In this poster, we report the results on two-pion femtoscopy measurements in Au+Au collisions at $\sqrt{s_\mathrm{NN}}$ = 3.0, 3.2, 3.5, and 3.9 GeV measured by the STAR experiment. The extracted correlation strength ($\lambda$) and HBT radii ($R_{\mathrm{out}}, R_{\mathrm{side}}, R_{\mathrm{long}}$) from the 3D correlation functions will be presented as a function of collision energy, centrality, rapidity, and pair transverse mass. We will compare the measurements with the results from transport model calculations. Finally, the implications on the properties of QCD matter at high baryon density will be discussed.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | RHIC-STAR |
