• Open Access

Dark matter interpretation of the ANITA anomalous events

Lucien Heurtier, Yann Mambrini, and Mathias Pierre
Phys. Rev. D 99, 095014 – Published 17 May 2019

Abstract

The ANITA collaboration recently reported the detection of two anomalous upward-propagating extensive air showers exiting the Earth with relatively large emergence angles and energies in the range O(0.51)EeV. We interpret these two events as coming from the decay of a massive dark matter candidate (mDM109GeV) decaying into a pair of right-handed neutrinos. While propagating through the Earth, these extremely boosted decay products convert eventually to τ-leptons which lose energy during their propagation and produce showers in the atmosphere detectable by ANITA at emergence angles larger than what Standard Model neutrinos could ever produce. We performed Monte Carlo simulations to estimate the propagation and energy loss effects and derived differential effective areas and number of events for the ANITA and the IceCube detectors. Interestingly, the expected number of events for IceCube is of the very same order of magnitude as the number of events observed by ANITA but at larger emergence angles, and energies 0.1EeV. Such features match perfectly with the presence of the two upward-going events IceCube-140109 and IceCube-121205 that have been exhibited from a recent reanalysis of IceCube data samples.

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  • Received 11 March 2019

DOI:https://doi.org/10.1103/PhysRevD.99.095014

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Gravitation, Cosmology & AstrophysicsParticles & Fields

Authors & Affiliations

Lucien Heurtier1,*, Yann Mambrini2,†, and Mathias Pierre2,3,4,‡

  • 1Department of Physics, University of Arizona, Tucson, Arizona 85721, USA
  • 2Laboratoire de Physique Théorique (UMR8627), CNRS, Université Paris-Sud, Université Paris-Saclay, 91405 Orsay, France
  • 3Instituto de Física Teórica (IFT) UAM-CSIC, Campus de Cantoblanco, 28049 Madrid, Spain
  • 4Departamento de Física Teórica, Universidad Autónoma de Madrid (UAM), Campus de Cantoblanco, 28049 Madrid, Spain

  • *heurtier@email.arizona.edu
  • yann.mambrini@th.u-psud.fr
  • mathias.pierre@uam.es

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Issue

Vol. 99, Iss. 9 — 1 May 2019

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