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.
Iso Spin Conservation is a concept in particle physics that states the total isospin (a quantum number related to the strong nuclear force) of a system must remain constant in a given interaction or decay process.
In Eta -> 2 Gamma Decay, the initial particle (Eta) has a total isospin of 0, and the final state (2 Gamma) also has a total isospin of 0. This means that the isospin must be conserved throughout the decay process, and the resulting particles must have a combined isospin of 0.
The Strong Nuclear Force is responsible for the interactions between subatomic particles, including the conservation of isospin. In Eta -> 2 Gamma Decay, the strong nuclear force must act to maintain the total isospin of the system.
No, Iso Spin Conservation is a fundamental law in particle physics and applies to all interactions and decays, including Eta -> 2 Gamma Decay.
If Iso Spin Conservation is violated in Eta -> 2 Gamma Decay, it would indicate a flaw in our understanding of the strong nuclear force and the underlying principles of particle interactions. Therefore, experimental observations of this decay process must always satisfy Iso Spin Conservation.