Physicists from the ALICE (A Large Ion Collider Experiment) Collaboration at CERN’s Large Hadron Collider (LHC) have developed a new technique that opens a door to high-precision studies of the dynamics of the strong force between unstable hadrons. An artist’s impression of the interaction between Omega (Ω) hyperon (left) and a proton (right). Image credit: Daniel Dominguez. Hadrons are composite particles made of two or three quarks bound together by the strong interaction, which is mediated by gluons. This interaction also acts between hadrons, binding nucleons (protons and neutrons) together inside atomic nuclei. One of the biggest challenges in nuclear physics today is understanding the strong interaction between hadrons with different quark content from first principles, that is, starting from the strong interaction between the hadrons’ constituent quarks and gluons.