TY - JOUR AU - Esteban, I. AU - Lopez-Pavon, J. AU - Martinez-Soler, I. AU - Salvado, J. PY - 2020 DA - 2020// TI - Looking at the axionic dark sector with ANITA T2 - Eur. Phys. J. C JO - European Physical Journal C SP - 259 EP - 9pp VL - 80 IS - 3 PB - Springer AB - The ANITA experiment has recently observed two anomalous events emerging from well below the horizon. Even though they are consistent with tau cascades, a high-energy Standard Model or Beyond the Standard Model explanation is challenging and in tension with other experiments. We study under which conditions the reflection of generic radio pulses can reproduce these signals. Furthermore, we propose that these pulses can be resonantly produced in the ionosphere via axion-photon conversion. This naturally explains the direction and polarization of the events and avoids other experimental bounds. SN - 1434-6044 UR - https://arxiv.org/abs/1905.10372 UR - https://doi.org/10.1140/epjc/s10052-020-7816-y DO - 10.1140/epjc/s10052-020-7816-y LA - English N1 - WOS:000521957300001 ID - Esteban_etal2020 ER -