skip to main content

SciTech ConnectSciTech Connect

Title: Simulations of ultra-high-energy cosmic rays propagation

We compare two techniques for simulation of the propagation of ultra-high-energy cosmic rays (UHECR) in intergalactic space: the Monte Carlo approach and a method based on solving transport equations in one dimension. For the former, we adopt the publicly available tool CRPropa and for the latter, we use the code TransportCR, which has been developed by the first author and used in a number of applications, and is made available online with publishing this paper. While the CRPropa code is more universal, the transport equation solver has the advantage of a roughly 100 times higher calculation speed. We conclude that the methods give practically identical results for proton or neutron primaries if some accuracy improvements are introduced to the CRPropa code.
Authors:
 [1] ;  [2]
  1. Russian Academy of Sciences, Institute for Nuclear Research (Russian Federation)
  2. University of Tokyo, Institute for Cosmic Ray Research (Japan)
Publication Date:
OSTI Identifier:
22472266
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 120; Journal Issue: 5; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCURACY; C CODES; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; COSMIC NEUTRONS; COSMIC PROTONS; COSMIC RAY PROPAGATION; INTERGALACTIC SPACE; MONTE CARLO METHOD; TRANSPORT THEORY; VELOCITY