Neutrino beam passes through optics lens, focus the neutrinos?

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SUMMARY

The discussion centers on the interaction of neutrino beams with optical lenses. It concludes that neutrinos can pass through matter without significant interaction, implying that standard optics lenses would not effectively focus a neutrino beam. Even if the lens were composed of compressed matter at nuclear densities, the effect on the neutrino beam would remain negligible unless the lens size approached astronomical scales, such as that of the sun. The conversation highlights that while matter effects on neutrino mixing are more significant, practical applications of focusing neutrinos with lenses are virtually nonexistent.

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If a neutrino beam passes through an optics lens in principle does the matter in the lens focus the neutrino beam granted it may be ridiculously small amount? If the lens were instead made of compressed matter of nuclear densities would the answer change much?

Thanks for any help!
 
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It's hard to say. Neutrinos can pass through the Earth without interacting with any matter whatsoever. Unless the size of your lens was, say, the size of the sun, I wouldn't count on observing any effect on the neutrino beam.
 
Ridiculously small amount: Yes.
Any application: No.

Matter effects on neutrino mixing are more notable.
 

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