In collaboration with Sanjib Kumar Agarwalla, we recently put out a paper on looking for new flavored long-ranged neutrino-electron interactions, using the flavor composition of the IceCube high-energy astrophysical neutrinos:
For the first time, we reach the ultimate sensitivity to probe these new interactions by considering the aggregated effect of all of the electrons in the local and distant Universe.
Mauricio Bustamante 