I don't know enough on this topic, so kindly pardon my ignorance, but while I'm aware that neutrino detectors can pick up particles punching through the ground, that's a few dozen meters of ground tops, is it not?<p>For a particle to survive tens of thousands of miles through dense rock and come out the other side <i>and register with the detector</i> makes me ask:<p>1. Just how many particles are discharged by the event and/or passing through the earth at the time of the reading?<p>2. What's so special about the composition of the detector that it's able to pick up particles that have not been stopped by the entirety of the Earth?<p>I'm not asking these questions dismissively. I'm keen to learn. I'm also aware I'm making many assumptions here. Please question or contradict all of my assumptions if possible.
This seems plausible to me. It’s something that has been hypothesized for a while, it’s not proposing anything implausible like ftl neutrinos, and the effect seems small enough to explain why we haven’t seen them before.
It’s very exciting.