Speaker
Description
By combining femtoscopic interferometry with an optical deblurring algorithm, we present a novel method to image the source in heavy-ion collisions while simultaneously extracting the interaction strength between particle pairs. We apply this method to the published STAR data on Au+Au collisions at $\sqrt{s_{\rm NN}}=200$ GeV, obtaining new fits for both the spatial distribution of the emission source and the strong interaction parameters for protons ($p$) and antiprotons ($\bar{p}$) from the respective $pp$ and $\bar{p}\bar{p}$ correlation functions. Within uncertainties, $p$ and $\bar{p}$ share the same freeze-out distribution, deviating from the widely assumed Gaussian shape. These results provide evidence for matter–antimatter symmetry at freeze-out, prior to full randomization of nucleons in the collision process.
