# Parity of neutral leptons

Why we consider Hadrons as the eigenstate of parity operator? In doing so we assign each hadron a quantum no. +1 or -1. What about the parity of leptons, and more specifically parity of neutrino? The whole thing boils down to asking what will be the parity of
$$\pi^{-}+e^{+}+\nu_{e}.$$

• Can't you look that up in a table in Wikipedia? – my2cts Nov 10 '19 at 10:49
• I do not get parity of neutrino.The above reaction I think may not have definite parity.To clear my doubt i have just asked. – p rakesh kumar dora Nov 10 '19 at 11:09
• I believe neutrinos have the same parity as the leptons. – my2cts Nov 10 '19 at 15:13

I cannot fathom the context of the collection of particles you proffer, but you are effectively asking for the parity of $$W^+ \pi^-$$, which should be ringing alarm bells.