Beta Minus (β^–) Decay

In neutron rich nuclei a neutron may decay into a proton, electron and an anti electron neutrino.

Charge Q: 0+1–1+0 00 Charge is conserved

Baryon Number B: +1+1+0+0 11 Baryon number is conserved

Lepton Number L: 00+1–1 00 Lepton number is conserved

In terms of quarks beta minus decay looks like this: which simplifies to:

Charge Q: – ⅓+⅔–1+0 – ⅓– ⅓ Charge is conserved

Baryon Number B: +⅓+⅓+0+0 ⅓⅓ Baryon number is conserved

Lepton Number L: 00+1–1 00 Lepton number is conserved