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What is the difference between the neutrinos of electron, muon and tau leptons.? They all same to be neutral and carry a very small mass. Similarly what is the difference bewteen anti neutrinos of electron, muon and tau leptons

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marked as duplicate by anna v particle-physics Mar 27 at 9:43

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  • $\begingroup$ What is the difference between electrons, muons, and taus? As Rabi famously asked of the muon, “Who ordered that?”. $\endgroup$ – G. Smith Mar 26 at 22:32
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The three leptons each carry their own "flavor"; tau type, muon type and electron type. This flavor is conserved in lepton decays. For example when a negative muon decays to an electron, the decay produces $\mu^- \rightarrow e^- + \bar{\nu_e} + \nu_\mu $. Note that two neutrinos are required in this decay. A $\nu_\mu$ conserves muon flavor on both sides of the equation and a $\bar{\nu_e} + e^-$ leaves a net zero (-1 + 1 = 0) electron flavor on both sides of the equation. What "exactly" is different about these neutrinos is hard to say though.

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