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The fitting procedure for longitudinal shower profiles observed with the fluorescence detector of the Pierre Auger ObservatoryJ. A. Bellido,
Andrej Filipčič,
Jon Paul Lundquist,
Shima Ujjani Shivashankara,
Samo Stanič,
Serguei Vorobiov,
Danilo Zavrtanik,
Marko Zavrtanik, 2023, published scientific conference contribution
Abstract: The Pierre Auger Observatory uses fluorescence telescopes in conjunction with ground level
particle detectors to measure high-energy cosmic rays and reconstruct, with greater precision,
their arrival direction, their energy and the depth of shower maximum. The depth of shower
maximum is important to infer cosmic ray mass composition. The fluorescence detector is
capable of directly measuring the longitudinal shower development, which is used to reconstruct
the cosmic ray energy and the atmospheric depth of shower maximum. However, given the limited
field of view of the fluorescence detector, the shower profile is not always fully contained within
the detector observation volume. Therefore, considerations need to be taken in order to reconstruct
some events. In this contribution we will describe the method that the Pierre Auger Collaboration
uses to reconstruct the longitudinal profiles of showers and present the details of its performance,
namely its resolution and systematic uncertainties.
Keywords: ultra-high-energy cosmic rays, Pierre Auger Observatory, extensive air showers, longitudinal shower profiles
Published in RUNG: 20.09.2023; Views: 1780; Downloads: 7
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