Neutrinos feeling all of the electrons

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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:

A Universe’s Worth of Electrons to Probe Long-Range Interactions of High-Energy Astrophysical Neutrinos, 1808.02042

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.

electron_sourceslimits_lrp_v_em_src_sel_010_no_enu_0025_2800_tev_alpha_nu_250_1s

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