Regge Theory vs Lattice QCD: Understanding Difficulties

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SUMMARY

The discussion centers on the comparative analysis of Regge Theory and Lattice Quantum Chromodynamics (QCD), highlighting the challenges in understanding their predictive capabilities. Participants express confusion over the assertion that Regge Theory, based on logical assumptions, yields valid predictions in non-perturbative QCD, while Lattice QCD does not. The conversation emphasizes the need for specificity in critiques of Lattice QCD, particularly regarding its predictive limitations. A referenced paper is noted for its lack of focus on Lattice QCD, prompting requests for clarification on specific content within the document.

PREREQUISITES
  • Understanding of Regge Theory and its principles
  • Familiarity with Lattice QCD methodologies
  • Knowledge of S-Matrix theory and its implications
  • Ability to interpret scientific literature in particle physics
NEXT STEPS
  • Research the fundamentals of Regge Theory and its applications in particle physics
  • Explore Lattice QCD techniques and their role in non-perturbative QCD predictions
  • Study S-Matrix theory to understand its logical foundations and predictions
  • Review the referenced paper for specific critiques of Lattice QCD and its predictions
USEFUL FOR

Particle physicists, theoretical physicists, and researchers interested in the comparative analysis of predictive models in quantum field theory.

Anashim
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It is very difficult for me to understand that a theory based only in "very logical" and "common sense" assumptions (S-Matrix theory, prestring era) makes (some) valid predictions in non-p QCD, while lattice QCD does not. Could the experts comment on this subjet?

P.S.: Not interested in string theory
 
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Why do you say lattice QCD is not making valid predictions? Could you make the problem more specific?
 
As far as I can tell, this review is not talking about lattice QCD at all (I searched the pdf for "lattice" and skimmed the contents)? Can you point to a specific paragraph or plot you are talking about?
 

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