Characterization of Atmosphere-Skimming Cosmic-Ray Showers in High-Altitude Experiments

Abstract

Atmosphere-skimming showers are initiated by cosmic rays with incoming directions such that the full development of the cascade occurs inside the atmosphere without ever reaching the ground. This new class of showers has been observed in balloon-borne experiments such as ANITA, but a characterisation of their properties is lacking. The interplay between the Earth's magnetic field, the long distances over which atmosphere-skimming showers develop, and the low density of the atmosphere they traverse gives rise to several effects that are not seen in downward-going cascades, and require detailed modeling. In this article, we used the latest version of the ZHAireS-RASPASS shower simulation program to tackle this problem, and dwell on the particular phenomena that arises from the peculiar environment on which these showers develop. We focus in particular on the properties of the longitudinal profile of the shower and its fluctuations as a function of cosmic-ray energy, direction and primary mass. We have also studied the phase-space of cosmic-ray arrival directions where detection in high-altitude experiments is more likely, and have found that only in a small range of directions the showers are sufficiently developed before reaching the altitude of the detector. Our results are relevant for the design of high-altitude and in particular balloon-borne experiments, and for the interpretation of the data they collect.

arXiv comment18 pages, 11 figures. Submited to JCAP

References in corpus (16)

• The Fluorescence Detector of the Pierre Auger Observatory
• The Giant Radio Array for Neutrino Detection (GRAND): Science and Design
• The Antarctic Impulsive Transient Antenna Ultra-high Energy Neutrino Detector Design, Performance, and Sensitivity for 2006-2007 Balloon Flight
• The hadronic interaction model Sibyll-2.3c and inclusive lepton fluxes
• Characteristics of Four Upward-pointing Cosmic-ray-like Events Observed with ANITA
• Observation of an Unusual Upward-going Cosmic-ray-like Event in the Third Flight of ANITA
• AIRES: A system for air shower simulations
• The Payload for Ultrahigh Energy Observations (PUEO): A White Paper
• Upward Tau Air Showers from Earth
• Data-driven estimation of the invisible energy of cosmic ray showers with the Pierre Auger Observatory
• Modeling of the Tau and Muon Neutrino-induced Optical Cherenkov Signals from Upward-moving Extensive Air Showers
• Coherent Radiation from Extensive Air Showers in the Ultra-High Frequency Band
• Unusual Near-horizon Cosmic-ray-like Events Observed by ANITA-IV
• Design and Initial Performance of the Prototype for the BEACON Instrument for Detection of Ultrahigh Energy Particles
• Overview and First Results of EUSO-SPB2
• The Terzina instrument onboard the NUSES space mission

Cited by in corpus (2)

• Radio Emission from Atmosphere-Skimming Cosmic Ray Showers in High-Altitude Balloon-Borne Experiments
• Uncertainties in the Estimation of Air Shower Observables from Monte Carlo Simulation of Radio Emission