Iso Spin Conservation in Eta -> 2 Gamma Decay

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The discussion centers on the isospin conservation in the decay process of eta mesons into two gamma photons (eta -> 2 gamma). It is established that the eta meson has an isospin (I) of 0, while the gamma photons do not have a defined isospin due to the nature of electromagnetic interactions. Consequently, isospin is not conserved in this decay process, as the left-hand side (LHS) has I = 0 and the right-hand side (RHS) lacks a defined isospin value. This confirms that isospin conservation does not apply in the context of this decay.

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eta --> gamma gamma

Could someone help me on this. Iso spin is not conserved in EM interaction. How can we say isospin is not conserved in the 'eta -> 2 gamma' decay.The eta has I =1 and I3 =0 and for the gamma I = 0 ,1. Thanks a lot
 
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The gamma has no defined Ispin since Ispin is not conserved if a gamma is involved.
The eta has I=0, not 1.
 


clem said:
The gamma has no defined Ispin since Ispin is not conserved if a gamma is involved.
The eta has I=0, not 1.

Thanks for the reply, that's my typing mistake, I=0 for eta.
OK. LHS I = 0 RHS I = not defined
So, isospin is not conserved. Is that the way to explain non conservation of isospin
thanks
 

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