4–6 Sept 2024
Universität Siegen
Europe/Berlin timezone

Measurement of the Cosmic Ray Spectrum with the Pierre Auger Observatory's Surface Detector

5 Sept 2024, 13:30
20m
ENC-D-308 (Universität Siegen)

ENC-D-308

Universität Siegen

Universität Siegen Emmy Noether Campus (ENC) Walter-Flex-Straße 3 57072 Siegen

Speaker

Gabriel Brichetto Orquera (KIT - ITeDA)

Description

In this study, we measured the cosmic ray energy spectrum at the Pierre Auger Observatory using a surface detector array composed of Water-Cherenkov detectors, with the energy scale calibrated by a fluorescence detector. This contribution presents the spectrum measured with the 433 m array, which lowers the energy threshold from previous measurements to 63 PeV, enabling the characterization of the flux steepening around 230 PeV, a feature known as the "second knee."

Primary author

Presentation materials