Author

S. Cabana-Freire

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Preprint Oct 2026

Cosmic Ray Observations using Coincident Scintillator and Radio Signals with the Beamforming Elevated Array for COsmic Neutrinos (BEACON)

At energies above 100 PeV, coherent radio frequency (RF) emission across the 10 -- 1000 MHz band from cosmic particle-induced atmospheric showers becomes increasingly dominant, making radio detection a powerful probe at ultrahigh energies. The Beamforming Elevated Array for COsmic Neutrinos (BEACON) considers mountaint...

Zachary T. Martin, J. Hinkel, Kira Perna et al. · 0 citations

Preprint Sep 2026

Energy estimation of direct and reflected cosmic-ray events aboard balloon-borne radio detectors

Balloon-borne radio detectors offer a highly effective approach to monitoring immense volumes of the Earth's atmosphere and ice for ultra-high-energy cosmic rays and neutrinos. Because these payloads measure radio emission from a single, highly elevated vantage point, reconstructing the air-shower energy using traditio...

S. Cabana-Freire, Jaime Álvarez-Muñiz, Matías Tueros · 0 citations

Preprint Aug 2026

Search for active-sterile neutrino transitions using Pierre Auger Observatory data

We investigate the sensitivity of the Pierre Auger Observatory to physics beyond the Standard Model arising from magnetic-moment-induced transitions between active and heavy sterile neutrinos. Such dipole portal interactions can enhance neutrino-nucleon cross sections above a kinematic threshold set by the sterile neut...

T. P. A. A. Halim, P. Abreu, M. Aglietta et al. · 0 citations