2019/05/31 by Ivan Esteban, J. López-Pavón, Jacobo Lopez-Pavon +4
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Axion #Computer science #Dark Matter and Cosmic Phenomena #Dark matter #Horizon #Ionosphere #Optics #Particle physics theoretical and experimental studies #Photon #Physics #Polarization (electrochemistry) #Reflection (computer programming) #astro-ph.HE #hep-ex #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-020-7816-y
New figure added (Fig. 5): estimation of ALP mass, coupling and corrected value of burst density, consistent with ANITA and present ALP experimental bounds. Estimation of ALP burst rate reaching the Earth added. Matches version accepted by EPJC
openalex publication_date 2020/03/01 · arxiv created 2020/03/06 · arxiv updated 2020/04/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract 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.