Measurement of the cosmic ray energy spectrum with IceTop-73

By M. Aartsen, R. Abbasi, Y. Abdou, M. Ackermann, J. Adams, J. Aguilar, M. Ahlers, D. Altmann, J. Auffenberg, X. Bai and 268 more. 2013

133 citations recorded by the source corpus.

We report on the measurement of the all-particle cosmic ray energy spectrum with the IceTop air shower array in the energy range from 1.58 PeV to 1.26 EeV. The IceTop air shower array is the surface component of the IceCube Neutrino Observatory at the geographical South Pole. The analysis was performed using only information from IceTop. The data used in this work were taken from June 1, 2010 to May 13, 2011. During that period the IceTop array consisted of 73 stations, compared to 81 in its final configuration. The measured spectrum exhibits a clear deviation from a single power law above the knee around 4 PeV and below 1 EeV. We observe spectral hardening around 18 PeV and steepening around 130 PeV.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f57a274f3461f1ccac10d7cedb3b2ff51fe376db

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In Nuclear and High Energy Physics

1. Tim Huege
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7. T. Kintscher
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Citations in the corpus

• IceCube-Gen2: the window to the extreme Universe (2020, background): “Detailed knowledge of the CR spectrum is essential to reduce the systematic uncertainties on the atmospheric backgrounds caused by CR of 10–1000 times higher energy than that of the astrophysical neutrinos [418, 419].”
• The IceCube Neutrino Observatory: Instrumentation and Online Systems (2016, background): “These astrophysical acceleration sites should also produce neutrinos up to PeV-scale energies.”
• Cosmic-ray energy spectrum and composition up to the ankle - the case for a second Galactic component (2016, methodology): “At high energies, that is above ⇠106 GeV, ground-based experiments such as KASCADE-Grande (Apel et al. 2013), the Tibet III array (Amenomori et al. 2008), IceTop (Aartsen et al. 2013), the Pierre Auger Observatory (Ghia et al. 2015) and the Telescope Array (Abu-Zayyad et al. 2013) have carried out d”