- #1
Sekonda
- 207
- 0
Hey,
I have Wick's rotated a contour integration of the form
[tex]\frac{i\lambda}{2}\int d^{3}p\int \frac{dE}{(2\pi)^{4}}\frac{1}{E^{2}-p^{2}-m^{2}}[/tex]
this is the form where we integrate along the real line, we rotate this to 'Euclidean' Space such that we make the changes
[tex]E\rightarrow iE\: ,\: p^{2}\rightarrow-p_{E}^{2}[/tex]
Where I think the change on the right of the momentum is the same as
[tex]p\rightarrow ip_{E}[/tex]
I'm not sure how to impose these changes on the integration measures dE and d^{3}p? I think we just get an 'i' factor from the change to the dE but not sure how to do the p integration measure.
Thanks for any help guys,
SK
I have Wick's rotated a contour integration of the form
[tex]\frac{i\lambda}{2}\int d^{3}p\int \frac{dE}{(2\pi)^{4}}\frac{1}{E^{2}-p^{2}-m^{2}}[/tex]
this is the form where we integrate along the real line, we rotate this to 'Euclidean' Space such that we make the changes
[tex]E\rightarrow iE\: ,\: p^{2}\rightarrow-p_{E}^{2}[/tex]
Where I think the change on the right of the momentum is the same as
[tex]p\rightarrow ip_{E}[/tex]
I'm not sure how to impose these changes on the integration measures dE and d^{3}p? I think we just get an 'i' factor from the change to the dE but not sure how to do the p integration measure.
Thanks for any help guys,
SK