نبذة مختصرة : ARTI is a complete framework designed to simulate the signals produced by the secondary particles emerging from the interaction of single, multiple and even, the complete flux of primary cosmic rays with the atmosphere. These signals are simulated for any particle detector located at any place (latitude, longitude and altitude), including the real-time atmospheric, geomagnetic and detector conditions. Formulated through a sequence of codes written in C++, Fortran, Bash and Perl, it provides an easy-to-use integration of three different simulation environments: magnetocosmic, CORSIKA and Geant4. These tools evaluate the geomagnetic field effects on the primary flux, the atmospheric showers of cosmic rays and the detectors' response to the secondary flux of particles. In this work, we exhibit the usage of the ARTI framework by calculating the total expected flux of signals at eight selected sites of the Latin American Giant Observatory, a cosmic ray Observatory located in Latin America covering a wide range altitudes, latitudes and geomagnetic rigidities. ARTI also calculates the flux of signals expected during the sudden occurrence of a gamma-ray burst or the flux of energetic photons originating in steady gamma sources. It also compares these fluxes with the expected background to detect these phenomena in a single water Cherenkov detector deployed in high altitude sites. Even more, by using ARTI, it is possible to calculate in a very precise way the expected flux of high energetic muons and other secondaries on the ground and to inject it over a geological structure for muography applications.
18 pages, 7 figures, 2 tables. Code available at https://github.com/lagoproject/arti
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