- #1
ryanwilk
- 57
- 0
Hi, this is probably very simple but what is the difference between these two Feynman propagators:
[tex] \frac{i}{q^2-m^2}[/tex]
[tex] \frac{i(p/+m)}{p^2-m^2}[/tex]
E.g. Is one used for the invariant amplitude and the other for loop integrals? Or is one for a fermion and the other for a boson? =s
Thanks!
[tex] \frac{i}{q^2-m^2}[/tex]
[tex] \frac{i(p/+m)}{p^2-m^2}[/tex]
E.g. Is one used for the invariant amplitude and the other for loop integrals? Or is one for a fermion and the other for a boson? =s
Thanks!
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