KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays

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

doi:10.48550/arxiv.1308.2098

Cited by 2 publications

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“…The models predict a charge dependent CR knee. A trend that seem to be compatible with the very last experiments results [255]. If most of the multi-PeV CRs are accelerated in the very early timescales of the SNR history then their detection at multi-hundred of TeV in gamma-rays may be difficult even with the next sensitivity improved instruments like the Cerenkov Telescope Array [256].…”

Section: Supernova Remnants and The Origin Of Galactic Cosmic Rayssupporting

confidence: 78%

The microphysics of collisionless shock waves

et al. 2016

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Collisionless shocks, that is shocks mediated by electromagnetic processes, are customary in space physics and in astrophysics. They are to be found in a great variety of objects and environments: magnetospheric and heliospheric shocks, supernova remnants, pulsar winds and their nebulæ, active galactic nuclei, gamma-ray bursts and clusters of galaxies shock waves. Collisionless shock microphysics enters at different stages of shock formation, shock dynamics and particle energization and/or acceleration. It turns out that the shock phenomenon is a multi-scale non-linear problem in time and space. It is complexified by the impact due to high-energy cosmic rays in astrophysical environments. This review adresses the physics of shock formation, shock dynamics and particle acceleration based on a close examination of available multi-wavelength or in situ observations, analytical and numerical developments. A particular emphasis is made on the different instabilities triggered during the shock formation and in association with particle acceleration processes with regards to the properties of the background upstream medium. It appears that among the most important parameters the background magnetic field through the magnetization and its obliquity is the dominant one. The shock velocity that can reach relativistic speeds has also a strong impact over the development of the micro-instabilities and the fate of particle acceleration. Recent developments of laboratory shock experiments has started to bring some new insights in the physics of space plasma and astrophysical shock waves. A special section is dedicated to new laser plasma experiments probing shock physics.

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Section: Supernova Remnants and The Origin Of Galactic Cosmic Rayssupporting

confidence: 78%

The microphysics of collisionless shock waves

et al. 2016

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“…• Primary CR spectra and composition: The spatial and temporal distribution of charged particles in the shower would probe the energy and composition of the primary CR, potentially addressing open issues like the exact position of the "light knee" (a change in spectral index in the spectrum of protons and helium, which ARGO-YBJ found at ∼ 700 TeV [153] and KAS-CADE, around 3 PeV − 4 PeV [145,154]) and the shape of the spectra of the heavy elemental components of primary CRs at PeV energies [145,154].…”

Section: Cosmic Ray Physics With Mathuslamentioning

confidence: 99%

A Letter of Intent for MATHUSLA: a dedicated displaced vertex detector above ATLAS or CMS.

Alpigiani

Ball²,

Barak³

et al. 2018

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In this Letter of Intent (LOI) we propose the construction of MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles) [1], a dedicated large-volume displaced vertex detector for the HL-LHC on the surface above ATLAS or CMS. Such a detector, which can be built using existing technologies with a reasonable budget in time for the HL-LHC upgrade, could search for neutral long-lived particles (LLPs) with up to several orders of magnitude better sensitivity than ATLAS or CMS, while also acting as a cutting-edge cosmic ray telescope at CERN to explore many open questions in cosmic ray and astro-particle physics. We review the physics motivations for MATHUSLA and summarize its LLP reach for several different possible detector geometries, as well as outline the cosmic ray physics program. We present several updated background studies for MATHUSLA, which help inform a first detector-design concept utilizing modular construction with Resistive Plate Chambers (RPCs) as the primary tracking technology. We present first efficiency and reconstruction studies to verify the viability of this design concept, and we explore some aspects of its total cost. We end with a summary of recent progress made on the MATHUSLA test stand, a small-scale demonstrator experiment currently taking data at CERN Point 1, and finish with a short comment on future work.

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KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays

Cited by 2 publications

References 0 publications

The microphysics of collisionless shock waves

The microphysics of collisionless shock waves

A Letter of Intent for MATHUSLA: a dedicated displaced vertex detector above ATLAS or CMS.

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