Undergrad Understanding Anti-Positron Chirality: The Confusion Explained

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SUMMARY

The discussion clarifies the chirality of positrons and anti-positrons, confirming that the positron is right-chiral while the anti-positron is left-chiral. Flip Tanedo acknowledged a correction in his post regarding this terminology after a user pointed out the inconsistency. The confusion stemmed from conflicting statements in the summary versus the main content, leading to a need for clarification on electron mass terms and chirality conventions.

PREREQUISITES
  • Understanding of particle physics terminology, specifically chirality
  • Familiarity with the Standard Model of particle physics
  • Knowledge of electron and positron properties
  • Basic grasp of quantum field theory concepts
NEXT STEPS
  • Research "Chirality in Quantum Field Theory" for deeper insights
  • Study "The Standard Model of Particle Physics" for foundational knowledge
  • Explore "Electron Mass Terms and Their Implications" for advanced understanding
  • Investigate "Chirality and Its Role in Particle Interactions" for practical applications
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Physicists, students of particle physics, and anyone interested in the nuances of chirality in quantum mechanics will benefit from this discussion.

kimcj
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please see the following conversaytion. he is saying in some point that the anti positron is right chiral and the says its left chiral...
whats right
ParoXoN • 4 years agoVery cool post! Thanks for that :)

I'm a little confused though:
You say towards the end:
"The “anti-positron” (does not interact with the W) is called eR (or sometimes eRc or eR-bar), the right-chiral electron."

But I thought the anti-positron was left-chiral?

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    Flip Tanedo ParoXoN4 years ago
    Ah, good catch ParoXoN. The positron is right-chiral, and the anti-positron is left-chiral. I've corrected the post (and given credit to you for pointing this out).

    Tony and jal: thanks! :-)
If the positron was right-chiral, the antipositron would have to be left-chiral. But then the electron mass term would have a left-chiral electron and a left-chiral antipositron, which is not correct.

Do you agree that there is a conflict between the statements or am I misinterpreting it somehow?

cheers,
D

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    Ken DK4 years ago
    Argh this was so confusing! The "summary" contradicts all the text and diagrams before it! I certainly hope the "summary" part was right, because that's what I'm going to stick in my brain.

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    Flip Tanedo DK4 years ago
    Hi DK, it's entirely possible that I was sloppy with conventions, I'll try to go over it again when I get a chance... but there's a possibility that I won't get the chance in the near future. -F
 
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