'Neutrinos only have very small rates of interaction with typical matter, so it’s difficult to detect them and test any of their properties. That’s why we have to use astrophysics and cosmology to discover interesting phenomena about them.”
In a novel study, scientists have conceived of a new framework that highlights how supernovae could be used to explain the interactions of neutrinos and their impact on the universe.
Neutrinos remain a mystery to scientists, despite much study. However, by evaluating how self-interactions would affect the neutrino signal from Supernova 1987A, the closest supernova spotted up to date, researchers found that “when neutrinos do interact with themselves, they form a tightly coupled fluid that expands under relativistic hydrodynamics.
“This problem has lain basically untouched for 35 years,” said Beacom. “So even though we were not able to completely solve how neutrinos affect supernovae, what we’re excited about is that we were able to make a substantial step forward.”
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