The LHAASO experiment: From Gamma-Ray Astronomy to Cosmic Rays

Sciascio, G. Di

doi:10.1016/j.nuclphysbps.2016.10.024

Cited by 113 publications

(68 citation statements)

References 23 publications

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“…An important objective of new experiments like LHAASO [392] or the the extension of Ice-Top [393] is the measurement of the mass composition in the knee region and above. In particular, the resolution of the position of the proton knee-which is at present discrepant between different experiments-is from a theoretical point crucial in pinning down the maximal energy and the possible need for an additional population of Galactic CR sources.…”

Section: Discussionmentioning

confidence: 99%

Cosmic ray models

Kachelrieß

Semikoz

2019

Progress in Particle and Nuclear Physics

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We review progress in high-energy cosmic ray physics focusing on recent experimental results and models developed for their interpretation. Emphasis is put on the propagation of charged cosmic rays, covering the whole range from ∼ (20 − 50) GV, i.e. the rigidity when solar modulations can be neglected, up to the highest energies observed. We discuss models aiming to explain the anomalies in Galactic cosmic rays, the knee, and the transition from Galactic to extragalactic cosmic rays.

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Section: Discussionmentioning

confidence: 99%

Cosmic ray models

Kachelrieß

Semikoz

2019

Progress in Particle and Nuclear Physics

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“…This very challenging task is currently pursued by the HAWC observatory. 292,293 In the future, theČerenkov Telescope Array (CTA) 294 -currently under construction -and forthcoming air shower arrays such as LHAASO 295 and possibly a Southern Hemisphere extension to HAWC, will provide a very significant increase in sentitivity and angular resolution in the multi-TeV regime. CTA in particular has the opportunity to focus on the emission from large individual clouds in the Galactic ridge and across the whole Galactic plane.…”

Section: Indirect Observations Of Crsmentioning

confidence: 99%

The origin of Galactic cosmic rays: Challenges to the standard paradigm

Gabici

Evoli

Gaggero

et al. 2019

Int. J. Mod. Phys. D

187

133

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A critical review of the standard paradigm for the origin of Galactic cosmic rays is presented. Recent measurements of local and far-away cosmic rays reveal unexpected behaviours, which challenge the commonly accepted scenario. These recent findings are discussed, together with long-standing open issues. Despite the progress made thanks to ever-improving observational techniques and theoretical investigations, at present our understanding of the origin and of the behaviour of cosmic rays remains incomplete. We believe it is still unclear whether a modification of the standard paradigm, or rather a radical change of the paradigm itself is needed in order to interpret all the available data 1 arXiv:1903.11584v2 [astro-ph.HE]

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“…Or in the case when these observatories are used to perform measurement of the hadronic cosmic rays (for example [12]). Finally, hadron simulations are required to estimate the sensitivity of future gamma-ray observatories, such as the Cherenkov Telescope Array (CTA) [13], the Southern Gamma-ray Survey Observatory (SGSO) [14], and the Large High Altitude Air Shower Observatory (LHAASO) [15] which could be affected by the choice of models. The advent of LHC measurements has provided large amounts of data at never before probed energies [16] and at extreme rapidities [17,18].…”

Section: Introductionmentioning

confidence: 99%

Systematic differences due to high energy hadronic interaction models in air shower simulations in the 100 GeV-100 TeV range

Parsons

Schoorlemmer

2019

Phys. Rev. D

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The predictions of hadronic interaction models for cosmic-ray induced air showers contain inherent uncertainties due to limitations of available accelerator data and theoretical understanding in the required energy and rapidity regime. Differences between models are typically evaluated in the range appropriate for cosmic-ray air shower arrays (10 15 -10 20 eV). However, accurate modelling of charged cosmic-ray measurements with ground based gamma-ray observatories is becoming more and more important.We assess the model predictions on the gross behaviour of measurable air shower parameters in the energy (0.1-100 TeV) and altitude ranges most appropriate for detection by ground-based gammaray observatories. We go on to investigate the particle distributions just after the first interaction point, to examine how differences in the micro-physics of the models may compound into differences in the gross air shower behaviour. Differences between the models above 1 TeV are typically less than 10%. However, we find the largest variation in particle densities at ground at the lowest energy tested (100 GeV), resulting from striking differences in the early stages of shower development.

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The LHAASO experiment: From Gamma-Ray Astronomy to Cosmic Rays

Cited by 113 publications

References 23 publications

Cosmic ray models

Cosmic ray models

The origin of Galactic cosmic rays: Challenges to the standard paradigm

Systematic differences due to high energy hadronic interaction models in air shower simulations in the 100 GeV-100 TeV range

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