I am not sure if this should be posted here. If not I hope you accept my apologizes and the admin move on the post as soon as possible.
I am studying manifold with boundaries and boundary conditions in a quantum field theory approach.
Could you recommend me books or papers about that?
I lack...
But why? because I solved loop integrals using dim regularization and other tricks and never used the change of variables. That is why I asked when to use the change of variables instead to keep using my previous methods (Used in many loop computations by some textboks like Peskin's)
I have read something about heavy particles in effective lagrangians. Briefly, looks like this but not at all as it uses fluctuation operators(=propagators?) which formula is as follows:
## \frac{\delta^2 S_{heavy}}{\delta h(x) \delta h (x')} |_{h=h_o} ## you mean smoething about that?
So I was asked to compute loop contributions to the Higgs and compute the integrals in spherical coordinates, I gave a look to Halzen book but did not found anything. Why, when and how to make that change?
Thank you very much!
Now the last doubt I have about the computations is what allows me to put the propagator in the action (eq.11) and what to remove the kinetic part.
I have doubts if I can do the following as the mass terms would have free ##N_R ## and ## \overline{N_R}## while integrating:
## \frac{1}{2} i (\overline{N_R}\overset{\leftarrow}{\not{\partial}} +\overset{\rightarrow}{\not{\partial}}N_R) ##
So, since ##N_R## and ## N_R^C ## have the same...
Can I compute in momentum space and then comeback to position space again freely? Or there is a way to split the ordinary derivative once for right-handed and once for left-handed interactions? if I understood correctly