Astroparticle Physics

Hadronic Interaction Models and UHECR Composition

Name: Hadronic Interaction Models and UHECR Composition
Start: 2021-10-14T15:00:00+02:00
End: 2021-10-14T16:30:00+02:00
Location: No location set

by Sergei Ostapchenko (UHH)

Thursday 14 Oct 2021, 15:00 → 16:30 Europe/Berlin

Description

I'll discuss the treatment of high energy interactions of hadrons and nuclei, in relation to experimental studies of ultra-high energy cosmic rays (UHECRs). I'll start with the general physics approaches of present day Monte Carlo (MC) generators and describe in some more detail the QGSJET-II MC model. Further, I'll demonstrate which features of high energy interactions have a strongest impact on predicted characteristics of cosmic ray induced extensive air showers (EAS) - nuclear-electromagnetic cascades in the atmosphere. Finally, I'll address the problem of a self-consistent interpretation of experimental data of the Pierre Auger observatory and outline the respective consequences for the nuclear composition of UHECRs.

Join the meeting here: Zoom link

Meeting ID: 921 1801 0804
Passcode: 68144845