My minimal knowledge of matter/animatter interaction is that only light is released and they obliviate each other. is this the same for neutrinos?
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Related: https://physics.stackexchange.com/q/127502/123208 – PM 2Ring May 19 '21 at 02:25
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From 1986: Neutrino-antineutrino annihilation around a collapsar – PM 2Ring May 19 '21 at 02:34
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Also related, kind of: https://physics.stackexchange.com/q/549859/123208 – PM 2Ring May 19 '21 at 07:54
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So basically this is not unknown science? Surely somewhere there a Feynman diagram. I cant find it. – Justin May 20 '21 at 05:27
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2Justin, there might be Feynman diagrams here: The annihilation of a neutrino-anti-neutrino pair into photons and the neutrino density in the universe, but it's paywalled. There's an approximate cross section formula in the abstract, but I don't know how to interpret it. – PM 2Ring May 20 '21 at 20:37
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Thanks @PM2Ring , that abstract sort of answers a lot really. – Justin May 20 '21 at 23:43
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Related Physics SE question: "What is the product of low energy neutrino annihilation?" – David Bailey Dec 08 '23 at 23:50
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Matter-antimatter annihilations don't need to only turn into "light" (or more precisely "photons"), however that is what happens with electron/positron annihilation which is to my knowledge the most common antimatter interaction in the real world.
Neutrino-antineutrino annihilation is extremely rare because they're both scarcely interactive and scarcely abundant. Since the neutrino is coupled to the weak force and the EM force, I believe that neutrino-antineutrino annhiliation can produce photons or Z bosons/mesons (all with varying probabilities). Incidentally, anything that can decay into a antineutrino-neutrino pair (which a photon I believe) can be a product of their annihilation, as QFT is reversible. My certainty on this is not 100% so I'm happy to be corrected by someone better versed in the specifics.
Señor O
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1"scarcely abundant" that bit isn't quite right. On earth the neutrino flux, just from our sun, is about 65billion per square centimeter per second (on a surface with normal towards the sun). Even intergalactic space is believed to have quite a high density. – R. Rankin May 19 '21 at 02:04
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There are vast numbers of neutrinos (& antineutrinos) in the cosmic neutrino background, a relic from the Big Bang, but due to their extremely low energy, they barely interact with anything. – PM 2Ring May 20 '21 at 20:45
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As I now understand it. Photons are not the only bosons that represent pure energy in this context. A z-boson can suffice or for that matter any boson. Am I right? – Justin Dec 10 '23 at 07:16