- #1
DeathbyGreen
- 84
- 16
Hi,
I'm trying to calculate an integral which looks unfortunately divergent. The structure is similar to a loop integral but the appendix in the Peskin textbook didn't have a useable form. The integral form is (I did a u substitution to make it easier to look at)
[itex]
\int_x^{\infty}du \frac{u^2}{\omega - u}
[/itex]
Does anyone know of a workable form for this? Introducing a cutoff is possible but I would prefer not to.
Edit: I know that it is divergent. I was hoping for some sort of regularization technique which would allow for a finite answer under certain conditions.
Thank you!
I'm trying to calculate an integral which looks unfortunately divergent. The structure is similar to a loop integral but the appendix in the Peskin textbook didn't have a useable form. The integral form is (I did a u substitution to make it easier to look at)
[itex]
\int_x^{\infty}du \frac{u^2}{\omega - u}
[/itex]
Does anyone know of a workable form for this? Introducing a cutoff is possible but I would prefer not to.
Edit: I know that it is divergent. I was hoping for some sort of regularization technique which would allow for a finite answer under certain conditions.
Thank you!
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