To explain the smallness of neutrino mass, new fields are commonly introduced, and some of these fields can constitute dark matter that interacts with neutrinos. In this talk, I will show how neutrino can serve as quantum sensors for dark matter. In particular, I will discuss ultralight vector dark matter: the gauge boson of a local U(1)_{B-L} symmetry spontaneously broken to generate Majorana neutrino mass. We show that Majorana neutrinos convert into antineutrinos as they travel through a background of such dark matter. The effect is suppressed by the small neutrino mass, but the enhancement from long astrophysical baselines can enable future searches with solar and supernova neutrinos to explore uncharted parameter space.
Ting Cheng, Research Associate, Fermilab
Host: Gustavo Alves
Joan West
(847) 491-3645
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