Feynman Slash Notation

A\!\!\!/\equiv \gamma^\mu A_\mu

using the Einstein Summation Notation where ''γ'' are the Gamma Matrices .

IDENTITIES

Using the Anticommutator s of the gamma matrices, one can show that for any

a_\mu

,
:

a\!\!\!/a\!\!\!/=a^\mu a_\mu=a^2.

In particular,
:

\partial\!\!\!/^2=\partial^2.

Further identities can be read off directly from the Gamma Matrix Identities by replacing the Metric Tensor with Inner Product s. For example,

	CATEGORIES ABOUT FEYNMAN SLASH NOTATION

	quantum field theory

	spinors

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