Recent results from the Pierre Auger Observatory

Abstract

Ultra-high-energy cosmic rays (UHECRs) are mostly protons and heavier nuclei arriving on Earth from space and producing particle cascades in the atmosphere, ”extensive air showers”. As of today, the most precise and high-statistics data set of the rare (≤ 1 particle per sq.km per year above 10[sup]19 eV) UHECR events is obtained by the Pierre Auger Observatory, a large area (~3000 sq.km) hybrid detector in Argentina. The Auger Observatory determines the arrival directions and energies of the primary UHECR particles and provides constraints for their masses. In this talk, I will present and discuss the recent results, including the detailed measurements of the cosmic-ray energy spectrum features, the study of the anisotropies in the UHECR arrival directions at large and intermediate angular scales, the multi-messenger searches, and the inferred cosmic-ray mass composition. Finally, the progress of the current upgrade of the Observatory, "AugerPrime" which is aimed at improving the sensitivity to the mass composition of ultra-high-energy cosmic rays, will be presented.

Keywords

ultra-high-energy cosmic rays;Pierre Auger Observatory;UHECR mass composition;energy spectrum;anisotropies;AugerPrime upgrade;

Data

Language:	English
Year of publishing:	2022
Typology:	1.10 - Published Scientific Conference Contribution Abstract (invited lecture)
Organization:	UNG - University of Nova Gorica
UDC:	52
COBISS:	135295747
Views:	452
Downloads:	3
Average score:	0 (0 votes)
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Other data

URN:	URN:SI:UNG
Pages:	22 prosojnic
ID:	17501162