2019/09/30 by Arman Esmaili, Yasaman Farzan · 18 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Dark matter #Fermion #Gauge (firearms) #Gauge boson #Gauge symmetry #Gauge theory #Neutrino #Particle physics #Particle physics theoretical and experimental studies #Physics #Standard Model (mathematical formulation) #astro-ph.HE #hep-ph
paper · pdf · doi:10.1088/1475-7516/2019/12/017
published in Journal of Cosmology and Astroparticle Physics 2019(12), 017 (Institute of Physics) · 17 pages, 4 figures; v2: discussion on production mechanism expanded, matches the published version
openalex created_date 2019/09/26 · openalex publication_date 2019/12/05 · arxiv created 2019/12/08 · arxiv updated 2019/12/10 · openalex updated_date 2026/08/06
The ANITA experiment has registered two anomalous events that can be interpreted as ν τ or τ with a very high energy of (0.6) EeV emerging from deep inside the Earth. At such high energies, the Earth is opaque to neutrinos so the emergence of these neutrinos at such large zenith angles is a mystery. In our paper, we present a model that explains the two anomalous events through a L e − L τ gauge interaction involving two new Weyl fermions charged under the new gauge symmetry. We find that, as a bonus of the model, the lighter Weyl fermion can be a dark matter component. We discuss how the ANITA observation can be reconciled with the IceCube and Auger upper bounds. We also demonstrate how this model can be tested in future by collider experiments.