Some basic questions about effective field theory (EFT)

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SUMMARY

This discussion centers on effective field theory (EFT) and the confusion surrounding its terminologies and concepts. The participant has been studying EFT through various textbooks and review articles but seeks clarification on specific terms. The discussion highlights the importance of understanding the foundational aspects of EFT to grasp its applications in theoretical physics.

PREREQUISITES
  • Familiarity with quantum field theory concepts
  • Understanding of renormalization techniques
  • Knowledge of perturbation theory
  • Basic grasp of particle physics terminology
NEXT STEPS
  • Study the principles of effective field theory in detail
  • Explore renormalization group flow in quantum field theories
  • Learn about the applications of EFT in particle physics
  • Review advanced textbooks on quantum field theory for deeper insights
USEFUL FOR

The discussion is beneficial for theoretical physicists, graduate students in physics, and researchers interested in the nuances of effective field theory and its implications in particle physics.

Elmo
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TL;DR
Concerning the operator product expansion and the expansion of the heavy propagator
I had been studying this topic from various textbooks and review articles and I am confused about some terminologies and concepts. The question I have typed in this PDF.

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[Mentor Note -- Added screenshot of PDF contents]
 

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