Full Monte-Carlo description of the Moscow State University Extensive Air Shower experiment

Abstract

The Moscow State University Extensive Air Shower (EAS-MSU) array studied high-energy cosmic rays with primary energies ~(1-500) PeV in the Northern hemisphere. The EAS-MSU data are being revisited following recently found indications to an excess of muonless showers, which may be interpreted as the first observation of cosmic gamma rays at ~100 PeV. In this paper, we present a complete Monte-Carlo model of the surface detector which results in a good agreement between data and simulations. The model allows us to study the performance of the detector and will be used to obtain physical results in further studies.

arXiv commentV2: some clarifications added; matches the published version. 23 pages, 12 figures (18 panels)

References in corpus (7)

• Big-Bang Nucleosynthesis
• Monte Carlo treatment of hadronic interactions in enhanced Pomeron scheme: I. QGSJET-II model
• Search for ultra-high energy photons using air showers
• Sensitivity of cosmic-ray experiments to ultra-high-energy photons: reconstruction of the spectrum and limits on the superheavy dark matter
• Estimate of the fraction of primary photons in the cosmic-ray flux at energies ~10^17 eV from the EAS-MSU experiment data
• CORSIKA Simulation of the Telescope Array Surface Detector
• Estimates of the cosmic gamma-ray flux at PeV to EeV energies from the EAS-MSU experiment data

Cited by in corpus (3)

• The Muon Puzzle in cosmic-ray induced air showers and its connection to the Large Hadron Collider
• No muon excess in extensive air showers at 100-500 PeV primary energy: EAS-MSU results
• Constraints on the flux of $\sim (10^{16}-10^{17.5})$ eV cosmic photons from the EAS-MSU muon data