The spin-statistics theorem says that having a system of identical fermions, the total wavefunction is antisymmetric with respect to exchange of any two fermions.
My question is, does this hold for antifermions too?
I am curious about this:
The neutral pion is formed by up + antiup or down + antidown quarks. Do these constituents follow the spin-statistics theorem inside the neutral pions? i.e., does the wavefunction of the neutral pion have to be antisymmetric under exchange of the quark and the antiquark?