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I know that, in theory at least, they do. However, I was wondering if there has been any experimental confirmation of this, or any other reasons for perhaps thinking that they do not interact via the gravitational force.

Qmechanic
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Sam Cottle
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1 Answers1

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Photons interact gravitationally, as seen in gravitational lensing.

A gravitational lens is a distribution of matter (such as a cluster of galaxies) between a distant light source and an observer, that is capable of bending the light from the source as the light travels towards the observer. This effect is known as gravitational lensing, and the amount of bending is one of the predictions of Albert Einstein's general theory of relativity.

So even massless particles follow the general relativity equations

If one googles "gravitational lensing and neutrinos a lot of papers proposing effects come up.

There are various future experiments proposed, from indirect ones deciphering the cosmic microwave bacground, to the use of neutrino detectors .

anna v
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