Monte-carlo simulation of the effective lunar aperture for detection of ultra-high energy neutrinos with LOFAR

G. K. Krampah, Stijn Buitink, Justin D. Bray, Arthur Corstanje, Mitja Desmet, Heino D. Falcke, Brian M. Hare, Jörg R. Hörandel, Tim Huege, V. B. Jhansi, Nikolaos Karastathis, Katharine Mulrey, Pragati Mitra, Anna Nelles, Hershal Pandya, Olaf Scholten, Sander Ter-Veen, Satyendra Thoudam, Tobias Winchen

Research output: Contribution to journalArticlepeer-review

Abstract

Ultra-high-energy (UHE) cosmic neutrinos interacting with the Moon’s regolith generate particle showers that emit Askaryan radiation. This radiation can be observed from the Earth using ground-based radio telescopes like LOFAR. We simulate the effective detection aperture for UHE neutrinos hitting the Moon. Under the same assumptions, results from this work are in good agreement with previous analytic parameterizations and Monte Carlo codes. The dependence of the effective detection aperture on the observing parameters, such as observing frequency and minimum detection threshold, and lunar characteristics like surface topography have been studied. Using a Monte Carlo simulation, we find that the detectable neutrino energy threshold is lowered when we include a realistic treatment of the inelasticity, transmission coefficient, and surface roughness. Lunar surface roughness at large scales enhances the total aperture for higher observation frequencies (ν≥1GHz) but has no significant effect on the LOFAR aperture. However, roughness at scales small compared to the wavelength reduces the aperture at all frequencies. © 2023, The Author(s).
Original languageAmerican English
JournalEuropean Physical Journal C
Volume83
Issue number12
DOIs
StatePublished - 2023

Keywords

  • Cosmology
  • Intelligent systems
  • Monte Carlo methods
  • Moon
  • Neutrons
  • Topography
  • Analytic parameterizations
  • Askaryan
  • Detection threshold
  • Energy thresholds
  • Ground based
  • Monte Carlo codes
  • Monte Carlo's simulation
  • Neutrino energy
  • Ultra high energy cosmic neutrinos
  • Ultrahigh energy neutrinos
  • Surface roughness

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