An excited nuclear level lies at above the ground state and decays with a mean life
PHYSICS · Multi-part · Fermi University Physics · Nuclear Physics · Radioactivity and decay modes · Radioactivity and decay modes
The Nucleus Resolved, Ch Decay rates from the golden rule: kinetics closed and alpha decay finished
Problem
An excited nuclear level lies at E=1.33MeV above the ground state and decays with a mean life τ=3.5×10−14s. Treat the level as an isolated resonance with a Lorentzian lineshape.
((a)) Find its width Γ, in eV.
((b)) Find the fractional width Γ/E.