# From a historical perspective why is beta decay associated with an anti neutrino instead of a neutrino?

I know it sounds like a silly question but didn't both Pauli and Fermi hint at Beta decay missing a particle to carry away a small amount of it's energy or mass but why is this an anti neutrino ?

The neutrino was not actually discovered some years latter so how was the Beta decay dubbed with the anti neutrino?

• Since the electron's creation is in conjunction with creating a particle of lepton number $-1$, it's natural to consider that an antilepton, and an antiparticle, and an antineutrino. – J.G. Jul 31 '18 at 15:11