Tagged Questions
4
votes
1answer
67 views
Explicit form of $\gamma^\mu \partial_\mu$ in the Dirac equation
I'm in an introductory particle physics class, and in performing manipulations on the Dirac equation, my instructor expands the $\gamma^\mu \partial_\mu$ term as:
$$\gamma^\mu \partial_\mu = \gamma^0 ...
1
vote
1answer
97 views
Sign Conventions for Dirac equation
Is it possible to have the Dirac sign convention, (-,+,+,+) and at the same time use the metric
$$dt^2-dx^2-dy^2-dz^2$$
i.e have opposing Dirac and metric tensor conventions?
3
votes
0answers
105 views
Dirac action and conventions
I have a (possibly) fundamental question, which is driving me crazy.
Notation
When considering the Dirac action (say reading Peskin's book), one have
$\int ...
