2007/05/14 by John A. Cairns, Cairns, John A.
Physics and Astronomy · #Astrophysics (astro-ph) #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Neutrino Physics Research #astro-ph
paper · pdf · doi:10.48550/arxiv.0705.1989
7 pages, 3 figures
arxiv created 2007/05/14 · openalex publication_date 2007/05/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
GZKFast is a low-cost astrophysical event generator designed to simulate photohadron processes resulting from ultra high energy cosmic ray fluxes. GZKFast is an easy to use event generator which specifically addresses issues relevant to cosmogenic neutrinos and the ultra high energy (UHE) neutrino spectrum. GZKFast injects UHE particles into a simulated cosmic microwave background (CMB) using a Monte Carlo approach. The interaction of each particle is simulated and the resulting detectable events are spooled to log files. Although GZKFast uses a simplified particle physics model and limited accelerator data it generates event distributions which are comparable with more thorough simulations such as the event generator SOPHIA