Simulation of ultra-high energy photon propagation with PRESHOWER 2.0

Abstract In this paper we describe a new release of the PRESHOWER program, a tool for Monte Carlo simulation of propagation of ultra-high energy photons in the magnetic field of the Earth. The PRESHOWER program is designed to calculate magnetic pair production and bremsstrahlung and should be used together with other programs to simulate extensive air showers induced by photons. The main new features of the PRESHOWER code include a much faster algorithm applied in the procedures of simulating the proc... Title of program: PRESHOWER 2.0 Catalogue Id: ADWG_v2_0 Nature of problem Simulation of a cascade of particles initiated by UHE photon in magnetic field. Versions of this program held in the CPC repository in Mendeley Data ADWG_v1_0; PRESHOWER 1.0; 10.1016/j.cpc.2005.07.001 ADWG_v2_0; PRESHOWER 2.0; 10.1016/j.cpc.2013.01.015 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)