Acoustic & Radio EeV Neutrino Detection Activities

Session

Ice Data Analysis & Tools 2

7 Jun 2022, 16:45

Conveners

Ice Data Analysis & Tools 2

• SIMONA TOSCANO (IDP - ULB (Universite libre de Bruxelles))

117. A macroscopic model of radar detection for the Radar Echo Telescope

Huesca Santiago, Enrique (IIHE-VUB)

07/06/2022, 16:45

We introduce a new macroscopic model to simulate in-ice radar detection of high-energy particle cascades. Ultra-high-energy cosmic events can reach the polar ice as a cosmic-ray extensive air shower or as a single neutrino. In both cases, the interaction with the ice media produces a high-energy particle cascade, which leaves a short-lived plasma trail composed of ionized ice electrons. Unlike...

77. Radiation of ionization electrons: the key-role of their 2-pt function of velocities

Deligny, Olivier

07/06/2022, 17:05

Several attempts to detect extensive air showers (EAS) induced by ultrahigh-energy cosmic rays have been conducted in the last decade based on the molecular Bremsstrahlung radiation (MBR) at GHz frequencies from quasi-elastic collisions of ionisation electrons left in the atmosphere after the passage of the cascade of particles. These attempts have led to the detection of a handful of signals...

115. Results from a low-threshold ultrahigh-energy neutrino search with the Askaryan Radio Array

Hughes, Kaeli (University of Chicago)

07/06/2022, 17:25

The Askaryan Radio Array (ARA) is an in-ice radio detector at the South Pole that targets radio emission from neutrino-induced particle cascades. Designed to detect neutrinos above 10 PeV, ARA has been taking data for over ten years and includes five independent stations. The newest ARA station is equipped with a phased array trigger, which lowers the trigger threshold compared to previous ARA...

85. Deep-learning based event reconstruction for shallow in-ice UHE neutrino detectors

Stjärnholm, Sigfrid (Uppsala University)

07/06/2022, 17:45

We present an end-to-end reconstruction of the neutrino energy, direction and flavor from shallow in-ice radio detector data using deep neural networks (DNNs). For the first time, we were able to determine the neutrino direction with a few degrees resolution also for the complicated event class of electron neutrino charged-current interactions where the shower development is impacted by the...

119. Radio propagation in non-uniform media

Van den Broeck, Dieder

07/06/2022, 18:05

It has been established that, in naturally occurring ice, exotic propagation
modes exist for radio signals. An interesting consequence of this is that it
seems possible for signal to propagate to the receiver from an area which
lies in the expected shadow zone. We present a ray tracing script based
on Fermat’s principle that has been developed with the aim to model
and understand these...

81. First-principle calculation of birefringence effects for in-ice radio detection of neutrinos

Heyer, Nils (Uppsala University)

07/06/2022, 18:25

The detection of high-energy neutrinos in the EeV range requires new detection techniques to cope with the small expected flux. The radio detection method, utilizing Askaryan emission, can be used to detect these neutrinos in polar ice. The propagation of the radio pulses has to be modeled carefully to reconstruct the energy, direction, and flavor of the neutrino from the detected radio...