Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2011-06-30
Phys. Rev. D 84, 103003 (2011)
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
Replaced with version published Phys. Rev. D
Scientific paper
10.1103/PhysRevD.84.103003
An in-depth characterization of coherent radio Cherenkov pulses from particle showers in dense dielectric media, referred to as the Askaryan effect, is presented. The time-domain calculation developed in this article is based on a form factor to account for the lateral dimensions of the shower. It is computationally efficient and able to reproduce the results of detailed particle shower simulations with high fidelity in most regions of practical interest including Fresnel effects due to the longitudinal development of the shower. In addition, an intuitive interpretation of the characteristics of the Askaryan pulse is provided. We expect our approach to benefit the analysis of radio pulses in experiments exploiting the radio technique.
Alvarez-Muñiz Jaime
Romero-Wolf Andrés
Zas Enrique
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