Relativistic Resonances and Decaying States. A Relativistic Extension of Time Asymmetric Quantum Theory
In this study, relativistic resonances and decaying states are phenomenologically discussed by giving some explicit examples from particle physics. Based on these phenomenological results, we briefly review how the theory of resonances and decaying states are unified. This is accomplished by a minor modification in the foundation of quantum theory, which leads to quantum theory that contains the time asymmetry of causality.