SUMMARY
This discussion focuses on the decay times of various bosons, hadrons, and fermions, emphasizing the importance of the Particle Data Group (PDG) as a primary resource for public information on particle lifetimes. The formula for calculating the lifetime of hadron resonances, t_X = \hbar / \Gamma_X, is highlighted, with a specific example provided for the \Delta(1232) resonance, where its width \Gamma_\Delta is approximately 117 MeV. The calculated lifetime of the \Delta(1232) is approximately 1.7 fm/c, demonstrating the practical application of the formula in particle physics.
PREREQUISITES
- Understanding of particle physics concepts, including bosons, hadrons, and fermions
- Familiarity with the Particle Data Group (PDG) resources
- Knowledge of quantum mechanics, specifically the relationship between width and lifetime
- Basic proficiency in using scientific notation and units in particle physics
NEXT STEPS
- Research the Particle Data Group (PDG) database for comprehensive particle information
- Study the implications of decay widths on particle lifetimes in quantum mechanics
- Explore additional examples of hadron resonances and their decay times
- Learn about the significance of the \hbar constant in particle physics calculations
USEFUL FOR
Physicists, students of particle physics, and researchers interested in the decay properties of subatomic particles will benefit from this discussion.