TY - JOUR
T1 - Measurement of the mass composition of ultra-high-energy cosmic rays at the Pierre Auger Observatory
AU - Pierre Auger Collaboration
AU - Mayotte, Eric
AU - Abdul Halim, A.
AU - Abreu, P.
AU - Aglietta, M.
AU - Allekotte, I.
AU - Almeida Cheminant, K.
AU - Almela, A.
AU - Aloisio, R.
AU - Alvarez-Muñiz, J.
AU - Ammerman Yebra, J.
AU - Anastasi, G. A.
AU - Anchordoqui, L.
AU - Andrada, B.
AU - Andringa, S.
AU - Aramo, C.
AU - Araújo Ferreira, P. R.
AU - Arnone, E.
AU - Arteaga Velázquez, J. C.
AU - Asorey, H.
AU - Assis, P.
AU - Avila, G.
AU - Avocone, E.
AU - Badescu, A. M.
AU - Bakalova, A.
AU - Balaceanu, A.
AU - Barbato, F.
AU - Bartz Mocellin, A.
AU - Bellido, J. A.
AU - Berat, C.
AU - Bertaina, M. E.
AU - Bhatta, G.
AU - Bianciotto, M.
AU - Biermann, P. L.
AU - Binet, V.
AU - Bismark, K.
AU - Bister, T.
AU - Biteau, J.
AU - Blazek, J.
AU - Bleve, C.
AU - Blümer, J.
AU - Boháčová, M.
AU - Boncioli, D.
AU - Bonifazi, C.
AU - Bonneau Arbeletche, L.
AU - Borodai, N.
AU - Brack, J.
AU - Brichetto Orchera, P. G.
AU - Briechle, F. L.
AU - Bueno, A.
AU - Ventura, C.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
PY - 2024/9/27
Y1 - 2024/9/27
N2 - After nearly 20 years of data-taking, the measurements made with the Pierre Auger Observatory represent the largest collection of ultra-high-energy cosmic ray (UHECR) data so far assembled from a single instrument. Exploring this data set led to a deeper understanding of the UHECR flux and many surprises. In particular, studies aiming to investigate and leverage the mass composition of UHECRs have played an important role in empowering discovery. This contribution will present an overview of the analyses of primary mass composition carried out during the first phase of the Observatory. The overview includes analyses derived from measurements made by the surface, fluorescence, and radio detectors covering energies ranging from 0.1 EeV up to 100 EeV. Special attention will be given to recent advances and results to provide a complete picture of UHECR mass composition at the Observatory as it moves to its next phase, AugerPrime. Additionally, specific updates will be given to studies focusing on mass trends from surface detector rise-times, Xmax dependent anisotropies, and UHECR beam characterization using the correlation between Xmax and signal amplitudes at the ground.
AB - After nearly 20 years of data-taking, the measurements made with the Pierre Auger Observatory represent the largest collection of ultra-high-energy cosmic ray (UHECR) data so far assembled from a single instrument. Exploring this data set led to a deeper understanding of the UHECR flux and many surprises. In particular, studies aiming to investigate and leverage the mass composition of UHECRs have played an important role in empowering discovery. This contribution will present an overview of the analyses of primary mass composition carried out during the first phase of the Observatory. The overview includes analyses derived from measurements made by the surface, fluorescence, and radio detectors covering energies ranging from 0.1 EeV up to 100 EeV. Special attention will be given to recent advances and results to provide a complete picture of UHECR mass composition at the Observatory as it moves to its next phase, AugerPrime. Additionally, specific updates will be given to studies focusing on mass trends from surface detector rise-times, Xmax dependent anisotropies, and UHECR beam characterization using the correlation between Xmax and signal amplitudes at the ground.
UR - https://www.scopus.com/pages/publications/85212301714
M3 - Conference article
AN - SCOPUS:85212301714
SN - 1824-8039
VL - 444
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 365
T2 - 38th International Cosmic Ray Conference, ICRC 2023
Y2 - 26 July 2023 through 3 August 2023
ER -