HEP Weekly Seminar: AMIGA: An infill array and underground muon detectors for the Pierre Auger Observatory
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America/Santiago
Description
Abstract:
To obtain direct measurements of the muon content of extensive air showers with energy above 10^16.5 eV, the Pierre Auger Observatory (PAO) is currently being equipped with an underground muon detector (UMD), consisting of 219 10m^2-modules in its surface detector arrays of 750m and 433m spacing (SD-750 and SD-433). Direct access to the shower muon content allows for the study of both the composition of primary cosmic rays and of high-energy hadronic interactions in the forward direction. As the muon density can vary between tens of muons per m^2 close to the intersection of the shower axis with the ground to much less than one per m^2 when far away, a broad dynamic range is necessary to achieve a good detector resolution. In this talk, we will review the process of the conception and finally construction of the AMIGA enhancement (SD+UMD) focusing both on its scientific case as well as its key role in the ongoing upgrade of the P.A. Observatory (dubbed AugerPrime)"
Dr. Federico Sánchez
Instituto de Tecnologías en Detección y Astropartículas, ITeDA
CAC - CNEA
