〈 Berger | Dillon 〉

How do imaginary mass corrections affect the lifetime of a particle? In this answer I show that when mass loop corrections in #QFT have an imaginary part that means that the particle will have a probability of living a time t decays exponentially https://physics.stackexchange.com/questions/452404/how-to-understand-complex-masses-of-unstable-particles-the-conceptual-problem-o/452583#452583 …