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IPM
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YEARS OLD

“School of Physic”

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Paper   IPM / Physic / 15832
School of Physics
  Title:   Explaining the ANITA events by a LeLτ gauge model
  Author(s): 
1 . A. Esmaili
2 . Y. Farzan
  Status:   Published
  Journal: JCAP
  No.:  12
  Vol.:  1912
  Year:  2019
  Pages:   017
  Supported by:  IPM
  Abstract:
The ANITA experiment has registered two anomalous events that can be interpreted as ντ or ντ with a very high energy of O(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 LeLτ 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.

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