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Cosmic Ray Spectrum and Composition from PeV to EeV Using 3 Years of Data From IceTop and IceCube

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arxiv 1906.04317 v2 pith:7I36SR3A submitted 2019-06-10 astro-ph.HE

IceCube Collaboration This is my paper
classification astro-ph.HE
keywords cosmiccompositionenergyspectrumdataicecubeicetopall-particle
verification ladder T0 review T1 audit T2 compute T3 formal
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We report on measurements of the all-particle cosmic ray energy spectrum and composition in the PeV to EeV energy range using three years of data from the IceCube Neutrino Observatory. The IceTop detector measures cosmic ray induced air showers on the surface of the ice, from which the energy spectrum of cosmic rays is determined by making additional assumptions about the mass composition. A separate measurement is performed when IceTop data are analyzed in coincidence with the high-energy muon energy loss information from the deep in-ice IceCube detector. In this measurement, both the spectrum and the mass composition of the primary cosmic rays are simultaneously reconstructed using a neural network trained on observables from both detectors. The performance and relative advantages of these two distinct analyses are discussed, including the systematic uncertainties and the dependence on the hadronic interaction models, and both all-particle spectra as well as individual spectra for elemental groups are presented.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Implication of multiple source populations of Galactic cosmic rays from proton and helium spectra

    astro-ph.HE 2025-11 conditional novelty 5.0 of 10

    The proton and helium spectra from 1 GeV to 10 PeV can be reproduced only by adding two local sources or a second background population on top of the standard cosmic-ray background.

  2. Scrutinizing the cosmogenic origin of the KM3-230213A event: A Multimessenger Perspective

    astro-ph.HE 2025-07 conditional novelty 5.0 of 10

    A multimessenger transport calculation finds that KM3-230213A is plausibly cosmogenic only if it originates from hard-spectrum protons above the ankle with source evolution close to (1+z)^3.

  3. Diffuse gamma-ray and neutrino emission from the Milky Way and the local knee in the cosmic ray spectrum

    astro-ph.HE 2025-07 conditional novelty 5.0 of 10

    Diffuse gamma-ray predictions from locally measured cosmic rays exceed LHAASO observations above 100 TeV, suggesting the PeV cosmic-ray knee originates from a local bubble roughly 0.7 to 1.5 kpc across.

  4. The cosmic-ray sea explains the Galactic $\gamma$-ray and $\nu$ diffuse emissions from GeV to PeV

    astro-ph.HE 2025-07 conditional novelty 4.0 of 10

    LHAASO's diffuse gamma-ray data from 1 TeV to 1 PeV are consistent with cosmic-ray sea models that use CALET, DAMPE, and KASCADE spectra, so no extra emission component is required.

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