To answer the fundamental questions concerning the origin and nature of ultra-high energy cosmic rays (UHECRs), it is important to confront data with simulated astrophysical scenarios. These scenarios should include detailed information on particle interactions and astrophysical environments. To achieve this goal one should make use of computational tools to simulate the propagation of these particles. For this reason the CRPropa framework was developed. It allows the propagation of UHECRs with energies ≳1017 eV and secondary gamma rays and neutrinos. The newest version, CRPropa 3, reflects an efficient redesign of the code as well as several new features such as time dependent propagation in three dimensions, galactic magnetic field effects and improved treatment of interactions, among other enhancements.
@article{arxiv.1411.2259,
title = {CRPropa: a public framework to propagate UHECRs in the universe},
author = {R. Alves Batista and M. Erdmann and C. Evoli and K. -H. Kampert and D. Kuempel and G. Müller and G. Sigl and A. van Vliet and D. Walz and T. Winchen},
journal= {arXiv preprint arXiv:1411.2259},
year = {2015}
}
Comments
6 pages, 6 figures; Proceedings of the International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2014)