If a Σ^- Particle at Rest Decays into a Neutron

question 26

Short Answer

If a Σ^- particle at rest decays into a neutron and a π^- , what is the total kinetic energy of the decay products? The masses of Σ^-, neutron, and π^- are 1197 MeV/c², 940 MeV/c², and 140 MeV/c², respectively.