High-energy astroparticle physics

TL;DR

This paper reviews the current state of high-energy astroparticle physics, covering ultra-high-energy cosmic rays, TeV gamma rays, and neutrinos, including recent experimental results and detection techniques.

Contribution

It provides a comprehensive overview of recent observational results and detection methods in high-energy astroparticle physics, highlighting advances in UHECR, gamma-ray, and neutrino research.

Findings

Recent results from Auger and HiRes on UHECRs

Detection of TeV gamma-ray sources by H.E.S.S., MAGIC, and Milagro

Progress in UHE neutrino detection techniques

Abstract

In these three lectures I discuss the present status of high-energy astroparticle physics including Ultra-High-Energy Cosmic Rays (UHECR), high-energy gamma rays, and neutrinos. The first lecture is devoted to ultra-high-energy cosmic rays. After a brief introduction to UHECR I discuss the acceleration of charged particles to highest energies in the astrophysical objects, their propagation in the intergalactic space, recent observational results by the Auger and HiRes experiments, anisotropies of UHECR arrival directions, and secondary gamma rays produced by UHECR. In the second lecture I review recent results on TeV gamma rays. After a short introduction to detection techniques, I discuss recent exciting results of the H.E.S.S., MAGIC, and Milagro experiments on the point-like and diffuse sources of TeV gamma rays. A special section is devoted to the detection of extragalactic magnetic fields with TeV gamma-ray measurements. Finally, in the third lecture I discuss Ultra-High-Energy (UHE) neutrinos. I review three different UHE neutrino detection techniques and show the present status of searches for diffuse neutrino flux and point sources of neutrinos.