Zee-Burst: A New Probe of Neutrino Nonstandard Interactions at IceCube
K. S. Babu (Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, USA); P. S. Bhupal Dev (Department of Physics and McDonnell Center for the Space Sciences, Washington University, St. Louis, Missouri 63130, USA); Sudip Jana (Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, USA); Yicong Sui (Department of Physics and McDonnell Center for the Space Sciences, Washington University, St. Louis, Missouri 63130, USA)
We propose a new way to probe nonstandard interactions (NSI) of neutrinos with matter using the ultrahigh energy (UHE) neutrino data at current and future neutrino telescopes. We consider the Zee model of radiative neutrino mass generation as a prototype, which allows two charged scalars—one doublet and one singlet, both being leptophilic, to be as light as 100 GeV, thereby inducing potentially observable NSI with electrons. We show that these light charged Zee scalars could give rise to a Glashow-like resonance feature in the UHE neutrino event spectrum at the IceCube neutrino observatory and its high-energy upgrade IceCube-Gen2, which can probe a sizable fraction of the allowed NSI parameter space.
