Wuppertal 2015 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 50: Kosmische Strahlung III

T 50.2: Vortrag

Dienstag, 10. März 2015, 17:00–17:15, I.13.65 (HS 26)

Radio reconstruction of the mass of ultra-high cosmic rays — •Qader Dorosti — Institut für Kernphysik (IKP)

Detection of ultra-high energy cosmic rays can reveal the processes of the most violent sources in the Universe, which yet has to be determined. Interaction of cosmic rays with the Earth's atmosphere results in cascades of secondary particles, i.e. air showers. Many of such particles are electrons and positrons. The induced electrons and positrons interact with the geomagnetic field and induce radio emissions. Detection of air showers along with the detection of induced radio emissions can furnish a precise measurement of the direction, energy and mass of ultra-high energy cosmic rays. The Auger Engineering Radio Array consists of 124 radio stations measuring radio emission from air showers, in order to reconstruct the energy, direction and mass of cosmic rays. In this contribution, we present a method which employs a reduced hyperbolic model to describe the shape of radio wave front. We have investigated that the parameters of the reduced hyperbolic model are sensitive to the mass of cosmic rays. The obtained results will be presented in this talk.