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Elementary Particle Physics:

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The Dirac equation

Elementary Particle Physics:

theory and experiments

Prof. dr hab. Elżbieta Richter-Wąs

Follow the course/slides from M. A. Thomson lectures at Cambridge University

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Non-relativistic QM (revision)

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The Klein-Gordon equation

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The Dirac equation

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The Dirac equation

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Dirac Equation: Probability Density and Current

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Covariant Notation: the Dirac g Matrices

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Properties of the g matrices

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Pauli-Dirac representation

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The Adjoint Spinor

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Dirac Equation: Free Particle at Rest

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Dirac Equation: Plane Wave Solutions

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Interpretation of –ve Energy Solutions

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Discovery of the Positron

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Feynman-Stuckelberg Interpretation

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Anti-Particle Spinors

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Anti-Particle Spinors

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Particle and anti-particle Spinors

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Wave function normalisation

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Lecture 1

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Charge Conjugation

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Using the anti-particle solutions

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Summary of Solutions to the Dirac Equation

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Spin States

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Pause for Breath …

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Helicity

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Lecture 3

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Helicity Eigenstates

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Intrinsic Parity of Dirac Particles

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Summary

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Summary

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Appendix I: Dimensions of the Dirac Matrices

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Appendix II: Spin

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Appendix III: Magnetic Moment

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Appendix IV: Covariance of Dirac Equation

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Appendix V: Transformation of Dirac current

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