Magneto-$\nu$: Heavy neutral lepton search using ${}^{241}$Pu ${\beta }^{-}$ decays

C. Lee, X. Zhang, A. Kavner +12

The MAGNETO-$\nu$ experiment searches for keV-scale heavy neutral leptons (HNLs) through precise measurements of the ${\beta }^{-}$-decay spectrum of ${}^{241}$Pu. We present spectra comprising…