Where can I find step-by-step calculus for QFT processes online?

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SUMMARY

This discussion centers on the search for online resources that provide step-by-step calculus for Quantum Field Theory (QFT) processes, specifically focusing on calculating cross sections from Feynman diagrams across various interactions such as QED, weak, and strong forces. Participants highlight the challenges of finding detailed online materials, noting that Feynman diagram calculations are often tedious and typically not fully spelled out. A recommended resource is Griffiths' "Introduction to Elementary Particles," which offers comprehensive examples and explanations.

PREREQUISITES
  • Understanding of Quantum Field Theory (QFT)
  • Familiarity with Feynman diagrams
  • Basic knowledge of quantum electrodynamics (QED), weak, and strong interactions
  • Mathematical proficiency in calculus and algebra
NEXT STEPS
  • Research Griffiths' "Introduction to Elementary Particles" for detailed examples of QFT calculations
  • Explore online resources that provide Feynman diagram calculation tutorials
  • Learn about computational tools used for QFT calculations, such as FORM or FeynCalc
  • Study advanced topics in QFT, including perturbation theory and renormalization techniques
USEFUL FOR

Students and researchers in theoretical physics, particularly those focusing on Quantum Field Theory, as well as educators seeking comprehensive teaching materials on QFT processes.

Marco_84
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Im currently studying different kinds of processes in QFT.
Does somebody know where to find all the calculus done step by step on the web.
It will be very helpfull.
thanks in advance,
Marco.
 
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Just to be clear:

You want something on the web that shows all the math to calculate a cross section from a feynman diagram for many different processes (qed, weak, strong, etc)?
 
Norman said:
Just to be clear:

You want something on the web that shows all the math to calculate a cross section from a feynman diagram for many different processes (qed, weak, strong, etc)?

yep I am so lazy...

marco
 
I doubt you will find much spelled out in nitty gritty detail on the web. Feynman diagram calculations are rather tedious to compute (hence the reason they're often given as homework problems). In practise, proffessionals use either a computer, have the result handy already, or they have learned the necessary tricks to get the information they want quickly, without doing the full algebra.

Probably the book that does the best job showing actual calculations in an understandable way is Griffiths 'introduction to elementary particles' as he does quite a few more examples than most books do (at least that I have read).
 
thanks for suggestions.

ciao
marco
 

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