TH Junior Journal Club

BRST quantisation of QED and QCD

by Dr Lars Hofer (IFAE Barcelona)

Europe/Madrid
Common room (IFAE)

Common room

IFAE

Description
I will first introduce the colour-flow representation for gluons which allows for a graphical calculation of colour factors. Then I will promote the QED/QCD gauge functions to dynamical fields (ghosts) and generalise the respective gauge symmetry to the BRST symmetry. Finally I will construct a BRST symmetric Langrangian and derive from it Feynman rules in axial and covariant gauge.
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