# Why could the Homestake experiment only detect electron neutrinos

The Homestake experiment measured the incoming electron neutrino flux via

$$\nu_{e}+ Cl^{37} \rightarrow Ar^{37} +e^{-}$$

Why does this reaction not apply to the other neutrino flavours? i.e. what disallows

$$\nu_{\mu}+ Cl^{37} \rightarrow Ar^{37} +\mu^{-}$$

$$\nu_{\tau}+ Cl^{37} \rightarrow Ar^{37}+ \tau^{-}$$