ARENA 2014

Session

Mon PM I

9 Jun 2014, 14:10

49. Modeling radio emission from particle showers in dense media and air: a pedagogical overview.

Prof. Alvarez-Muniz Jaime (Dept, of Particle Physics, Univ. of Santiago de Compostela, Spain)

09/06/2014, 14:10

Mon PM I - Emission Theory & Modeling

I will review the current understanding of radio emission from particle showers in both dense dielectric media and the atmosphere. A net charge is generated in those showers due to the Askaryan effect in dense media, and to Askaryan as well as geomagnetic effects in air. I will discuss macroscopic and microscopic approaches to model the emitted radiation. The prominent role of shock wave...

31. SLAC T-510: Radio emission from particle cascades in the presence of a magnetic field

Katharine Mulrey (University of Delaware)

09/06/2014, 14:50

Mon PM I - Emission Theory & Modeling

Geomagnetic radiation from air showers is an attractive technique for detecting ultra-high energy cosmic rays. Macroscopic and microscopic models have been developed which qualitatively agree with field observations. A controlled laboratory experiment at the Stanford Linear Accelerator Center (SLAC) was designed to test these models. The experiment measures the radio frequency emission from...

20. Geant4 simulations of radio signals from particle showers for the SLAC T-510 experiment

Anne Zilles (KIT)

09/06/2014, 15:15

Mon PM I - Emission Theory & Modeling

The SLAC T-510 experiment was designed to reproduce the physics of radio emission from air showers in a controlled lab experiment with the goal to test established formalisms for simulation of radio emission physics: the “end-point" formalism and the "ZHS" formalism. Simulation results derived with these formalisms can be explained by a superposition of magnetically induced transverse current...

29. Measurement of the polarization of the radio emission in air showers with LOFAR and the influence of atmospheric electric fields.

Prof. Olaf Scholten (KVI-CART, Univ. of Groningen)

09/06/2014, 15:35

Mon PM I - Emission Theory & Modeling

With the LOFAR antenna array we have measured the the polarization footprint of the radio emission from extensive air showers for a large number of single events. The polarization direction is determined from the Stokes parameters integrated over the time duration of the radio pulse. It will be shown that for events for which no thunderstorm activity has been registered the polarization...