How Strong Is the Strong Force?

Scientists have long sought to understand the strength of the strong force, a fundamental force of nature that holds quarks together inside protons and neutrons. Researchers at CERN have been studying the strong force using the Large Hadron Collider (LHC) and have made new measurements that provide insight into its strength. The team used the LHC to collide lead ions at high energies, creating a 'hot, dense soup' of subatomic particles. By analyzing the particles produced in these collisions, they were able to determine the 'running coupling' of the strong force, which describes how its strength changes as energy increases. The results show that the strong force is slightly weaker than previously thought, with a 'running coupling' of 1.167, which is 1.7% lower than the previously accepted value. This discovery could have significant implications for our understanding of the strong force and the behavior of matter at very high energies.