Exploring Elementary Particle Dynamics and Forces
Dive into the fascinating world of elementary particle dynamics, studying the four fundamental forces - strong, electromagnetic, weak, and gravitational. Learn about Quantum Electrodynamics (QED) and Quantum Chromodynamics (QCD), unraveling the mysteries of particle interactions and quantum behavior. Discover the complexities of weak interactions and the intriguing phenomena of electroweak interactions, with more exciting insights to come.
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Presentation Transcript
ELEMENTARY PARTICLE DYNAMICS CHAPTER 2
THE FOUR FORCES FORCE RELATIVE STRENGTH RANGE MEDIATOR Strong ~1 fm gluon 1 Electromagnetic 10 2 photon Weak 10 13 * ~10 3fm W and Z Gravitational 10 42 Graviton
QUANTUM ELECTRODYNAMICS (QED) INTRO. TO FEYNMANDIAGRAMS Fundamental Process Feynman diagrams do not represent trajectories ? ? + ? Bhabha Scattering Compton Scattering M ller Scattering
QUANTUM ELECTRODYNAMICS (QED) ?0 ? ? ? ? ?+ ? ?+ ? ? 1 ?0 ? ? ? ? 2
QUANTUM CHROMODYNAMICS (QCD) Color plays the role of charge. Fundamental Process ? ? + ? q q q q
QUANTUM CHROMODYNAMICS (QCD)
WEAK INTERACTIONS FUNDAMENTAL INTERACTION + CHARGEDAND NEUTRAL CURRENTS
WEAK INTERACTIONS ELECTROWEAK INTERACTIONS DOUBLE BETA DECAY
