Res Jost

Res Jost, or Jost's method, refers to a technique in relativistic quantum mechanics used to analyze scattering processes and bound states of particles. It involves studying the mathematical properties of functions called wave functions and their behavior at high energies. By focusing on the analytical structure of these functions, particularly their poles in the complex energy plane, physicists can derive important information about particle interactions, resonance states, and potential shapes. This approach helps bridge theoretical predictions with experimental observations in particle physics, enhancing our understanding of fundamental forces and particles.