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Frequently Asked Questions
1 Can neutrinos annihilate? and into what?
-Can neutrinos annihilate? and into what?
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Yes. Every elementary particle has its corresponding antiparticle, including neutrinos.
So a neutrino and and ani-neutrino will annihilate into a Z0. The Z0
is unstable and it decays into lepton pairs (e+e-, μ+μ-,
τ+τ-) or quark pairs, or it can decay back to a neutrino-anti neutrino pair.
(Note that a neutino will only annihilate with an anti-neutrino of its own type, which is really its
antiparticle. A νe will not annihilate with an anti νμ, for example)
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