Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 71: Eingeladene Vorträge III

T 71.5: Semi-Invited Talk

Thursday, March 22, 2018, 15:36–16:00, Z6 - HS 0.001

Radio detection of cosmogenic neutrinos in the Antarctic Ice — •Anna Nelles — DESY, 15738 Zeuthen, Germany — University of California, Irvine, CA 92617, USA

Measuring neutrinos of energies of more than 10¹⁶ eV will be an important step towards finding the origin of ultra-high energy cosmic rays. The interaction of cosmic rays with the cosmic microwave background and matter surrounding the sources will create an inevitable but low neutrino flux that mostly depends on source evolution and composition. The most promising technique to detect these neutrinos is based on radio emission. Particle showers generated by neutrinos create a short nanosecond-scale radio pulse, which can be measured at large distances in radio transparent media such as ice. The attenuation length of usually more than 500 meters allows for the construction of large arrays at modest costs. In order to effectively detect neutrinos at the relevant energies, effective volumes two orders of magnitude larger than current detectors are needed. Also, analysis methods have to be developed, of which many can built on the success of radio detection of air showers. I will elaborate on recent results of pilot stage arrays in Antarctica and discuss the way forward.