Lecture

Discrete Symmetries Introduction

In course
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Description

This lecture introduces the concept of discrete symmetries in Quantum Field Theory (QFT). The instructor discusses the role of symmetries in QFT, including continuous symmetries and conservation laws. The lecture covers discrete symmetries such as charge conjugation and time reversal, and their impact on particles and anti-particles. The instructor explains how discrete symmetries affect the Lagrangians of free scalar, Dirac spinor, photon, and massive vector fields. Additionally, the lecture explores the implications of discrete symmetries on interactions and the violation of certain symmetries in weak interactions.

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