I'm currently teaching myself some QFT trough Peskin and Schroeders Introduction to QFT and I've noticed that in several arguments they rely on appealing to the Born approximation of non-relativistic QM scattering theory. For example on page 121 equation (4.125) they appeal to the scattering amplitude(adsbygoogle = window.adsbygoogle || []).push({});

[tex] \langle p'|iT|p\rangle = -i \tilde{V}(\vec q) 2\pi \delta(E_\vec{p} - E_\vec{p'}).[/tex]

I thought it might be a good idea to read up on this and I'm trying to find some literature where the scattering amplitude is stated in the form above and explained. I've had no success so far.

Does anyone have any good references?

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# Peskin & Schroeder QFT Born Approximation reference.

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