Neutrinos Caught In The Act Of Collision
It's a podcast > you have to listen https://www.sciencefriday.com/segmentsNeutrinos are known as the “ghost particle.” Even though countless numbers of the subatomic particles rain down from the sun, supernova, and other cosmic sources every second, they are difficult to detect because of their weak interactions with matter. Physicists at the Oak Ridge Laboratory were able to take the first measurement of a neutrino interacting with the nucleus of an atom.Results were published this week in the journal Science.
Neutrino detectors that hunt for high-energy cosmic neutrinos are often larger apparatuses buried deep underground. But this group of scientists used a small detector that captured low-energy neutrinos coming from a manmade source. Kate Scholberg, a physicist and an author on that study, describes how the team was able to capture this elusive process, and how this observation could be used as a model for understanding neutrinos formed from cosmic sources.
Kate Scholberg is a professor of physics at Duke University. She’s based in Durham, North Carolina.
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*This copy was updated on September 18, 2015, to indicate that the team of scientists mapped out manmade neutrinos in addition to geoneutrinos.