4 ms·
Do we know how many neutrinos were registered during the 503 days? I'd be curious about the resolution of this image. Also, in order to cause the Cherenkov rad
by linuxhansl 6y ago
Do we know how many neutrinos were registered during the 503 days? I'd be curious about the resolution of this image.
Also, in order to cause the Cherenkov radiation, the neutrino has interact at least with an electron, I wonder about the percentage of the number of neutrinos interacting with the water in this vs. the number of neutrinos that interacted with Earth on the way.
Not anything practical... I'd just be curious.
- 0PingWithJesus 6y agoFor their more recent data they reported seeing ~32000 solar neutrino events over a 1600 day dataset (cite: top-right of page 13 https://arxiv.org/pdf/1606.07538.pdf https://arxiv.org/pdf/1606.07538.pdf). Their detector nowadays is more sensitive than it was when the OP was published so I would estimate the image comes from probably around 5000 neutrino events. And I don't know any specific numbers but you can be sure a large amount more of neutrinos interacted with the air/rock between the Sun and Super-K than interacted in the detector volume. But that number (whatever it is) is still tiny compared to the total flux (which is ~5 million per square centimeter per second). And that's of just the "high energy" type neutrinos that Super-K is sensitive to. The lower energy varieties are more like 10 billion per square centimeter per second.