'4 momenta' presentation slideshows

Introduction to Quantum Electrodynamics

428 views • 29 slides

The Dirac Equation

The Dirac Equation. Origin of the Equation. In QM, observables have corresponding operators, e.g. Relativistically, we can identify p ? ? i ~ ? ? Schroedinger equation (non-relativistic): Klein-Gordon equation (relativistic): Both differential equations are linear & second order in x m

701 views • 29 slides

Introduction to Quantum Electrodynamics

375 views • 26 slides

Lifetimes, Cross-Sections and Matrix Elements

Lifetimes, Cross-Sections and Matrix Elements. Decay Rates and Lifetimes Cross Sections Matrix Elements for a Toy Model. Lifetime and Decay Rate and Natural Width. Decay rate is W W = - ( dN/dt) / N N ( t ) = N (0) e - t/ ?

296 views • 20 slides

Feynman Diagrams of the Standard Model

652 views • 15 slides