Ting Cheng, Fermilab [HET Seminar] Supernova neutrino detection at DUNE: obtaining precision and probing ultralight dark matter

Thursday 10 Sept 2026, 11:00 → 13:00 US/Eastern

Small Seminar Room

The DUNE far detector offers a unique, flavor- and helicity-tagged view of neutrinos from a Galactic core-collapse supernova, with particular sensitivity to the supernova $\nu_e$ spectrum. In this talk, I will first discuss how to obtain precision measurements of this spectrum using a data-driven strategy that calibrates the uncertain $\nu_e$-argon cross section with solar and muon-decay-at-rest neutrinos as standard candles. With this helicity tagging, complementary to the antineutrino sensitivity of other supernova detectors through inverse beta decay, we can measure neutrino-antineutrino asymmetries as a probe of ultralight vector dark matter coupled to lepton number, such as $U(1){B-L}$ or $U(1){L_i-L_j}$.

 

 

https://bnl.zoomgov.com/j/16010362754?pwd=Z1l1SS9JUDlyR1hSUHNyaDV1dTZHUT09