China's participation in high-energy nuclear physics research achieves a major breakthrough

ALICE light-ion collisions reveal that the geometry of atomic nuclei affects high-energy collision processes Validated differences in flow between oxygen-oxygen and neon-neon, helping to test nuclear structure models

A Chinese research team, relying on the ALICE experiment at the Large Hadron Collider in Europe, has made new progress in lightnuclei collision research, further revealing the impact of the geometric shape of atomic nuclei on highenergy collision processes. This study was completed through collaboration between the research team of the National Key Laboratory of Nuclear Data at the China Institute of Atomic Energy and the Niels Bohr Institute of the University of Copenhagen in Denmark. It carried out measurements of anisotropic flow in oxygenoxygen and neonneon collisions, supplementing key experimental evidence for the formation mechanism of collective effects in relativistic nuclear collisions. The findings have been published in Physical Review Letters and selected as an Editor's Suggestion. The results show that the flow characteristics of different lightnuclei systems differ significantly and are consistent with theoretical models, helping to test models of the internal structure of atomic nuclei and providing higherprecision experimental constraints for research on the quarkgluon plasma and the fundamental structure of atomic nuclei.