Parity Violation in Pion Decay Explained

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    Decay Parity Pion
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SUMMARY

The discussion centers on the decay process of the pion, specifically the reaction Pion+ -> muon+ + neutrino, which demonstrates a violation of parity conservation. The longitudinal polarization of the muon+ serves as a key indicator of this violation. References to external resources, including HyperPhysics and Nick Cowan's paper on weak interactions, provide additional context and background on the subject. The importance of understanding these concepts is emphasized for those studying particle physics.

PREREQUISITES
  • Understanding of particle decay processes
  • Familiarity with weak interactions in particle physics
  • Knowledge of longitudinal polarization concepts
  • Basic comprehension of parity violation
NEXT STEPS
  • Study the principles of weak interactions in particle physics
  • Explore the concept of longitudinal polarization in detail
  • Read "The Failure of Parity in Weak Interactions" by Nick Cowan
  • Investigate the implications of parity violation in other particle decays
USEFUL FOR

Students and researchers in particle physics, physicists interested in weak interactions, and anyone seeking to understand the implications of parity violation in particle decay processes.

positron
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Consider this decay:
Pion+ -> muon+ + neutrino
It says that one can check the longitudinal polarization of the muon+ and this would confirm that the parity is not conserved. Can you explain what this means in simple terms?
 
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Where is it stated "longitudinal polarization of the muon+"? Textbook?

Lets refer to -
http://hyperphysics.phy-astr.gsu.edu/hbase/particles/piondec.html
which doesn't answer the question, but is nice background.

This might explain it -
http://tcmms.ca/~jess/musr/cap/pidk.htm

and some interesting background "The Failure of Parity in Weak Interactions" by Nick Cowan
http://www.astro.washington.edu/cowan/school/parity.pdf

And for additional reading -
http://www.lbl.gov/abc/wallchart/chapters/05/2.html

and for :biggrin:
http://pibeta.web.psi.ch/docs/publications/tom_diss/html/web_diss-2.1.1.html
 
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