Is Isospin Conserved in Particle Interactions?

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SUMMARY

In particle physics, isospin is a flavor quantum number, but it is not conserved in particle interactions. The z component of isospin, however, is conserved during these interactions. For example, the reaction involving an electron neutrino and a proton resulting in an electron pion and a proton illustrates this principle. It is crucial to understand that while isospin itself may not be conserved, the z component adheres to conservation laws, particularly in weak interactions.

PREREQUISITES
  • Understanding of particle physics concepts, particularly isospin and its components.
  • Familiarity with weak interactions and their properties.
  • Knowledge of quantum numbers and conservation laws in particle physics.
  • Basic understanding of particle decay processes and their implications.
NEXT STEPS
  • Research the role of isospin in strong and weak interactions.
  • Study the conservation laws in particle decay processes.
  • Learn about the implications of isospin violation in particle physics.
  • Explore examples of particle interactions that demonstrate conservation of the z component of isospin.
USEFUL FOR

Students of particle physics, researchers in quantum mechanics, and anyone interested in the conservation laws governing particle interactions.

rshalloo
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Homework Statement


Hey I just want to clarify something. In particle physics, isospin is a flavor quantum number. Is it isospin or the z component of isospin which is conserved in particle interactions

Homework Equations



electron neutrino + proton -> electron pion+ + proton

The Attempt at a Solution



from what I can tell isospin is not conserved while the z component of isospin is?
(also I realize from a decay point of view this violates conservation of energy I just wanted an example to demonstrate my point)

Thanks
 
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Isospin is not conserved under weak interaction.
 

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