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In nuclear physics and particle physics, the weak interaction, also called the weak force, is one of the four known fundamental interactions, with the others being electromagnetism, the strong interaction, and gravitation.
The weak interaction is the only process in which a quark can change to another quark or a lepton to another lepton (flavor change). Neither the strong interaction nor electromagnetic permit flavor changing. This fact is crucial in many decays of nuclear particles.
30 wrz 2021 · The theory describing its behavior of weak interaction and effects is often called quantum flavourdynamics (QFD). Particles interact through this weak interaction by exchanging force carriers, known as W +, W –, and Z bosons. They are known as intermediate vector bosons.
Nuclear Physics Chapter 10. Instrumentation Lecture Slides Recitations Assignments Course Info Instructor Prof. Markus Klute; Departments ... Weak Interactions. Lecture 6.1: Feynman Rules (09:44) Lecture 6.2: Electroweak Unification (09:25) Lecture 6.3: Pion Decay (07:50)
The Weak Interaction. The weak interaction accounts for many decays in particle physics, e.g. μ. − → − e ̄νe νμ. − τ − → e ̄νe ντ π. + → − μ ̄νμ n → − pe ̄νe. Characterised by long lifetimes and small interaction cross-sections.
Two new forces are introduced when discussing nuclear phenomena: the strong and weak interactions. When two protons encounter each other, they experience all four of the fundamental forces of nature simultaneously. The weak force governs beta decay and neutrino interactions with nuclei.
6 wrz 2024 · weak interaction, a fundamental force of nature that underlies some forms of radioactivity, governs the decay of unstable subatomic particles such as mesons, and initiates the nuclear fusion reaction that fuels the Sun.
