Discussion Overview
The discussion centers on whether there is experimental or observational evidence for neutrinos being affected by gravity, including potential methods such as gravitational lensing and the detection of cosmic neutrino backgrounds.
Discussion Character
- Exploratory
- Debate/contested
- Technical explanation
Main Points Raised
- One participant inquires about experimental evidence for neutrinos being affected by gravity, noting that existing papers on lensing do not present results outside of error margins.
- Another participant suggests that the redshifted cosmic neutrino background might be relevant to the discussion.
- A different participant expresses surprise at the direct measurement of cosmic background radiation and requests a link to supporting literature.
- One contributor argues that determining gravitational effects on neutrinos is currently impossible without a neutrino imager, which they claim does not exist, while mentioning the complexities of existing neutrino detection methods.
- Another participant counters that neutrino imagers do exist, referencing a paper about imaging the moon using the IceCube neutrino detector, although they acknowledge it does not directly address the original question.
- A later reply expresses gratitude for the information about the IceCube neutrino telescope.
Areas of Agreement / Disagreement
Participants express differing views on the existence and capabilities of neutrino imagers, as well as the relevance of cosmic neutrino backgrounds to the question of gravitational effects on neutrinos. The discussion remains unresolved regarding the experimental evidence for neutrinos being affected by gravity.
Contextual Notes
Limitations include the current lack of a neutrino imager capable of determining gravitational effects and the dependence on the definitions of what constitutes evidence in this context.