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Feb 15 – 18, 2022
America/Vancouver timezone
WNPPC2022 Booklet has been added. See also information about today's special guest: Dr. Eden Hennessey

The ANITA Anomalous Events and Axion Quark Nuggets

Feb 16, 2022, 10:12 AM


Dark Matter Searches Dark Matter Searches


Xunyu Liang (University of British Columbia)


The Antarctic Impulse Transient Antenna (ANITA) collaboration have reported observation of two anomalous events with noninverted polarity. These events are proven to be hard to explain in terms of conventional cosmic rays (CRs). We propose that these anomalous events represent the direct manifestation of the
dark matter (DM) annihilation events within the so-called axion quark nugget (AQN) DM model, which was originally invented for completely different purpose to explain the observed similarity between the dark and the visible components in the Universe, i.e. $\Omega_{\rm DM}\sim \Omega_{\rm vis}$ without any fitting parameters. We support this proposal by demonstrating that the observations, including the frequency, intensity and time duration of the radio pulses nicely match the emission features of the upward going AQN events. We list a number of features of the AQN events which are very distinct from conventional CR air showers. The observations (non-observation) of these features may substantiate (refute) our proposal.

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Primary authors

Xunyu Liang (University of British Columbia) Prof. Ariel Zhitnitsky (University of British Columbia)

Presentation materials