This suggested that the so-called "isospin symmetry" between up and down quarks might be broken by more than expected due to the differences in their electric charges and masses—a discrepancy ...

This kind of symmetry is called rotational symmetry. Rotational symmetry is where a shape or pattern can be rotated or turned around a point and it looks the same. Have a go at this crafty ...

More information: Evidence of isospin-symmetry violation in high-energy collisions of atomic nuclei, arXiv (2023). DOI: 10.48550/arxiv.2312.06572 Provided by CERN ...