Latest Results from the KASCADE-Grande Data Analysis

Kang, D.; Apel, W. D.; Arteaga‐Velázquez, J. C.; Bekk, K.; Bertaina, M.; Blümer, J.; Bozdog, H.; Brancus, I. M.; Cantoni, E.; Чиавасса, А.; Cossavella, F.; Daumiller, K.; Souza, Vítor de; Pierro, F. Di; Döll, P.; Engel, R.; Fuhrmann, D.; Gils, H.J.; Glasstetter, R.; Grupen, C.; Haungs, A.; Heck, D.; Hörandel, J.R.; Huber, Daniel; Huege, T.; Kampert, K. H.; Klages, H.O.; Link, K.; Łuczak, P.; Mathes, H.J.; Mayer, H.J.; Milke, J.; Mitrica, B.; Morello, C.; Oehlschläger, J.; Ostapchenko, S.; Palmieri, N.; Pierog, T.; Rebel, H.; Roth, M.; Schieler, H.; Schoo, S.; Schröder, Frank G.; Sima, O.; Toma, G. de; Trinchero, G.; Ulrich, H.; Weindl, A.; Wochele, J.; Zabierowski, J.

doi:10.22323/1.358.0306

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…These are certainly among the major sources of systematic errors that affect the interpretation of shower array measurements (for a recent discussion see, for instance, refs. [68,69]), although recent re-analyses of the KASCADE-Grande data with the latest versions of the post-LHC codes confirm previous results [70].…”

Section: Elemental Composition In the 10 14 To 10 18 Ev Regionsupporting

confidence: 66%

Measurement of Energy Spectrum and Elemental Composition of PeV Cosmic Rays: Open Problems and Prospects

Sciascio

2022

Applied Sciences

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Cosmic rays represent one of the most important energy transformation processes of the universe. They bring information about the surrounding universe, our galaxy, and very probably also the extragalactic space, at least at the highest observed energies. More than one century after their discovery, we have no definitive models yet about the origin, acceleration and propagation processes of the radiation. The main reason is that there are still significant discrepancies among the results obtained by different experiments located at ground level, probably due to unknown systematic uncertainties affecting the measurements. In this document, we will focus on the detection of galactic cosmic rays from ground with air shower arrays up to 1018 eV. The aim of this paper is to discuss the conflicting results in the 1015 eV energy range and the perspectives to clarify the origin of the so-called `knee’ in the all-particle energy spectrum, crucial to give a solid basis for models up to the end of the cosmic ray spectrum. We will provide elements useful to understand the basic techniques used in reconstructing primary particle characteristics (energy, mass, and arrival direction) from the ground, and to show why indirect measurements are difficult and results are still conflicting.

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Section: Elemental Composition In the 10 14 To 10 18 Ev Regionsupporting

confidence: 66%

Measurement of Energy Spectrum and Elemental Composition of PeV Cosmic Rays: Open Problems and Prospects

Sciascio

2022

Applied Sciences

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“…Fermi-LAT [1,2], KASKADE [3], CASA-MIA [4], CASA-BLANCA [5], and of cosmic rays, e.g. PAMELA [6], AMS-02 [7,8], TA [9], KASKADE-Grande [10] and the Pierre Auger Observatory (PAO) [11]. The measurement of astrophysical neutrinos made by IceCube [12,13] has allowed to complement these searches with a study of astrophysical neutrinos in the energy range below 10 PeV.…”

Section: Introductionmentioning

confidence: 99%

Heavy decaying dark matter at future neutrino radio telescopes

Chianese,

Fiorillo,

Hajjar

et al. 2021

Preprint

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“…Composition-Several experiments, e.g., ARGO-YBJ, KASCADE-Grande, Tunka, IceCube, and IceTop (e.g., Andeen & Plum 2019;Kang et al 2021), have measured the composition of CRs between the knee and the ankle of the spectrum. The average composition is light (predominantly protons and helium nuclei) at the knee, i.e., at energy ∼10 15.5 eV.…”

Section: Cosmic-ray Observationsmentioning

confidence: 99%

Reacceleration of Galactic Cosmic Rays beyond the Knee at the Termination Shock of a Cosmic-Ray-driven Galactic Wind

Mukhopadhyay

Peretti

Globus

et al. 2023

ApJ

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The origin of cosmic rays (CRs) above the knee in the spectrum is an unsolved problem. We present a wind model in which interstellar gas flows along a nonrotating, expanding flux tube with a changing speed and cross-sectional area. CRs from Galactic sources, such as supernova remnants, which are coupled to the plasma via Alfvén waves, provide the main pressure source for driving this outflow. These CRs are then subject to diffusive shock reacceleration at the Galactic wind termination shock, which is located at a distance ∼200 kpc. Some of the highest-energy reaccelerated particles propagate upstream against the wind and can contribute to the petaelectronvolt to exaelectronvolt range of the spectrum. We analyze the conditions under which efficient reacceleration can occur and find that rigidities ∼10–40 PV can be obtained and that the termination shock may account for between 10% and 50% of the proton spectrum measured in IceCube/IceTop experiment. In our model, the termination shock is unable to fully explain the CR spectrum in the petaelectronvolt to exaelectronvolt range. The highest-energy particles that escape downstream from our termination shock, and similar shocks surrounding most galaxies, can be further accelerated by intergalactic shock fronts.

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Latest Results from the KASCADE-Grande Data Analysis

Cited by 6 publications

References 2 publications

Measurement of Energy Spectrum and Elemental Composition of PeV Cosmic Rays: Open Problems and Prospects

Measurement of Energy Spectrum and Elemental Composition of PeV Cosmic Rays: Open Problems and Prospects

Heavy decaying dark matter at future neutrino radio telescopes

Reacceleration of Galactic Cosmic Rays beyond the Knee at the Termination Shock of a Cosmic-Ray-driven Galactic Wind

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