What are the Benefits of Using Quark Diagrams in Particle Physics?

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Discussion Overview

The discussion revolves around the benefits and contexts of using quark diagrams in particle physics, particularly in relation to Feynman diagrams. Participants explore the distinctions and potential advantages of quark diagrams, as well as their applicability in various scenarios.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants inquire about the specific context in which quark diagrams are beneficial, suggesting a need for clarification.
  • There is a suggestion that quark diagrams may serve as an alternative to Feynman diagrams, although this is met with skepticism by some participants.
  • One participant proposes that quark diagrams can be viewed as Feynman diagrams at the quark level, specifically in processes like beta decay.
  • Another participant introduces the idea of double line formalism as a potential aspect of quark diagrams.
  • A participant describes quark diagrams as a subclass of Feynman diagrams that exclude intermediate bosonic interactions, noting that they simplify the representation by avoiding complications with gluons and adhering to Zweig's rule.

Areas of Agreement / Disagreement

The discussion contains multiple competing views regarding the relationship between quark diagrams and Feynman diagrams, and the benefits of using quark diagrams remain unresolved.

Contextual Notes

Participants express uncertainty about the definitions and contexts of quark diagrams versus Feynman diagrams, indicating a need for further clarification on their respective roles in particle physics.

FlagellumDei
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Self-explaining question... Thanks.
 
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in which context?
 
malawi_glenn said:
in which context?

As an alternative to Feynman diagrams (?), or so I heard...

It doesn't sound ok, right?
 
FlagellumDei said:
As an alternative to Feynman diagrams (?), or so I heard...

It doesn't sound ok, right?

no then it just means a feynman diagram "on quark level" eg. beta decay

http://www.antonine-education.co.uk/Physics_AS/Module_1/Topic_5/Feynmann_2.gif
 
Last edited by a moderator:
malawi_glenn said:
no then it just means a feynman diagram "on quark level" eg. beta decay

http://www.antonine-education.co.uk/Physics_AS/Module_1/Topic_5/Feynmann_2.gif

It seems reasonable... Thanks man
 
Last edited by a moderator:
Maybe the double line formalism ?
 
I believe that they are a subclass of Feynman diagrams that do not show intermediate bosonic interactions; i.e. the relevant Feynman diagrams without any wiggly lines. The advantage is that any diagram with a continuous gap between the quarks is forbidden (suppressed) by Zweig's rule (iirc) and also that as flavour changing is relatively uncommon the lines often are just solid and 'simples'. Also, you don't have a whole infinity of gluons to worry about!
 

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