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Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 106: Kosmische Strahlung VI (Radio)

T 106.5: Talk

Thursday, March 3, 2016, 17:55–18:10, VMP9 SR 30

Event reconstruction using the radio-interferometric technique in the frame of AERA — •Dmytro Rogozin for the Pierre-Auger collaboration — Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie (KIT)

It is a well-known fact that there is coherent radio emission induced by extensive air-showers. This fact is exploited in the Auger Engineering Radio Array (AERA), the radio extension of the Pierre Auger Observatory. This is a unique radio experiment due to its world-largest size of 17 km2, and due to its precise nanosecond timing calibration. These features become crucial for detection of highly inclined air-showers with their very large foot-prints, and for the ability to apply interferometric reconstruction techniques.

The standard reconstruction techniques typically treat all radio stations as separate detectors. Nevertheless there is a possibility to do an interferometric analysis. This means combining all detected signals from all antennas in a specific way. In this talk we present a beam-forming interferometric technique and its application to AERA. According to the definition of the beam-forming quantities one can expect its correlation with the shower parameters such as energy of the primary particle and distance to the shower maximum. At the first step, Monte-Carlo simulations of AERA events including the noise from measured events were used to test these dependencies. The results and the future perspectives of this method are discussed with a particular emphasis on very inclined air-showers where the aforementioned correlations are assumed to be strongest.

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