Physicists at the Large Hadron Collider have identified an unusual structure within neon atoms. While textbooks often describe atomic nuclei as simple spheres, researchers at CERN have uncovered evidence that neon-20 nuclei possess a shape resembling a bowling pin.
This discovery came from studying how particles scatter after high-energy collisions. Because atomic nuclei are too small to photograph directly and quantum states average out their orientation, researchers rely on indirect methods to map their internal geometry. By comparing the behavior of oxygen-16 and neon-20 during collisions, the team observed patterns in particle flow that correlate with specific nuclear shapes.
Oxygen-16 is predicted to have a tetrahedral structure, while neon-20 exhibits this bowling-pin geometry. The researchers analyzed how debris ejected from these collisions flows in specific directions, allowing them to verify that the initial arrangement of protons and neutrons leaves a permanent signature in the aftermath of a smash.
This result demonstrates that particle colliders act as powerful tools for mapping nuclear structures. By examining the collective flow of particles, scientists can determine the geometry of atomic cores with high precision. This method provides new constraints for models of nuclear physics, proving that even the most fundamental components of matter have complex and diverse physical forms.