Recent content by Breo

I am still wondering haha Do not know for now... tip for clairvoyance?

oh! On the unit sphere area?

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?

"[...]Change the momentum integrals to spherical coordinates[...]"

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...

The Weyl equations?

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

My fault. Sorry and thank you.

Yes, but I was specially interested in a good textbpok

Where can I find interesting derivations and ideas from the Palatini Formalism like the Holst action?

If you guys could tell me a good textbook about the open problems in SM I would be very grateful.

Sorry, I was replying to Chris :P You mean to consider Majorana Fermions so play with ## N_{R_i} = N_{R_i}^c ## ? in the most convenient way?