Last modification: 8 Apr 2014

The **PAR**ametrized **S**imulation **E**ngine for **C**osmic
rays is a Monte Carlo generator to produce UHECR mock data sets including
effects from source distribution, energy loss and deflection in extragalactic
and galactic fields. It is realized as a set of PXL modules with graphical
steering with the Vispa GUI.

Instead of a full Monte Carlo approach, in which you would follow individual cosmic rays on their trajectory, it calculates the discrete density function of the probability to observe a cosmic ray with energy E from an direction using parametrizations for the deflection and energy loss. From this pdf it generates mock data sets either from a parametrization of an observed spectrum, or a template data set.

Please use the following reference for PARSEC in scientific publications:

Bretz, H.-P. et al. (2014). PARSEC: A Parametrized Simulation Engine for Ultra-High Energy Cosmic Ray Protons. Astroparticle Physics 54, 110–117. DOI [arXiv]

and preferrably also to http://www.physik.rwth-aachen.de/parsec as online reference.