Why have we not observed any supposedly fundamental spin-0 particles in nature? :)I am having trouble understand why the klein-gordan eqn is accepted to describe spin 0 particles since it gives the wrong statistical interpretation (such as negative probablities).
The Klein-Gordan equation has to be second quantized to get to a QM wave function.I am having trouble understand why the klein-gordan eqn is accepted to describe spin 0 particles since it gives the wrong statistical interpretation (such as negative probablities).