What Part of the Wavefn Ensures Symmetry for Rho^0 and Pi^0 Bosons?

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Discussion Overview

The discussion revolves around the symmetry requirements of the wave function for Rho^0 and Pi^0 bosons, particularly focusing on how their different spin states influence the overall symmetry of their wave functions. The scope includes theoretical considerations of particle physics and the properties of bosons and fermions.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants note that both Rho^0 and Pi^0 are bosons and require an overall symmetric wave function, but they exist in different spin states, with Pi^0 in an anti-symmetric S=0 state and Rho^0 in a symmetric S=1 state.
  • One participant clarifies that the wave function of a state with several identical bosons must be symmetric under exchanges, suggesting a distinction between the multi-boson wave function and the wave function of quarks within a single meson.
  • Another participant acknowledges a mix-up regarding the wave functions and shifts focus to the overall wave function of the quarks, questioning what else differs if the spins are different for the two mesons.
  • A later reply proposes that since the quarks inside the mesons are distinguishable (quark and antiquark), their combination may not have a symmetry requirement.

Areas of Agreement / Disagreement

Participants exhibit some agreement on the need for symmetry in the wave function of bosons, but there is disagreement regarding the implications of spin states and the symmetry requirements for the quark compositions within the mesons. The discussion remains unresolved with competing views on the nature of the wave functions.

Contextual Notes

Limitations include potential misunderstandings about the symmetry requirements for multi-boson versus single meson wave functions, as well as the implications of distinguishability of quarks in the context of overall wave function symmetry.

JoePhysicsNut
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Both Rho^0 and Pi^0 are bosons so require an overall symmetric wavefn. However, they are in different spin states: the Pi is in the anti-symmetric S=0 state and the Rho is in one of the symmetric S=1 states.

Which other part of the overall wavefn (color, flavor, spatial) differs between the two such that their wavefn's have the required symmetry? As far as I know they should be identical in all other respects!
 
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The wave function of a state with *several* identical bosons must be symmetric under exchanging those bosons. It sounds like you are mixing up this multi-boson wave function with the wave function of the quark and antiquark inside a single meson.
 
I was mixing it up yes! So but taking the overall wavefn of the quarks then. As fermions they must be anti-symmetric overall. If the spins are different for the two mesons, then what else is also different?
 
Actually i think i know what the answer is. Since the quarks inside the mesons are distinguishable (antiquark and quark) then their combination doesn't have a symmetry requirement.
 

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