The ANITA Anomalous Events and Axion Quark Nuggets

• Main Authors: Liang, Xunyu, Zhitnitsky, Ariel
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: arXiv 2021
• Subjects: High Energy Physics - Phenomenology hep-ph; High Energy Astrophysical Phenomena astro-ph.HE; Instrumentation and Methods for Astrophysics astro-ph.IM; FOS Physical sciences; Antarctic; Gorham; The Antarctic; Antarc*
• Online Access: https://dx.doi.org/10.48550/arxiv.2105.01668; https://arxiv.org/abs/2105.01668

The Antarctic Impulse Transient Antenna (\textsc{ANITA}) collaboration \cite{Gorham:2016zah,Gorham:2018ydl,Gorham:2020zne} 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 (CR). 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. $Ω_{\rm DM}\sim Ω_{\rm visible}$ without any fitting parameters. We support this proposal by demonstrating that the observations \cite{Gorham:2016zah,Gorham:2018ydl,Gorham:2020zne}, 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. : 15 pages, 5 figures