The Pierre Auger Collaboration

A. Abdul Halim13, P. Abreu72, M. Aglietta54,52, I. Allekotte1, K. Almeida Cheminant70, A. Almela7,12, R. Aloisio45,46, J. Alvarez-Muñiz79, J. Ammerman Yebra79, G.A. Anastasi54,52, L. Anchordoqui86, B. Andrada7, S. Andringa72, C. Aramo50, P.R. Araújo Ferreira42, E. Arnone63,52, J. C. Arteaga Velázquez67, H. Asorey7, P. Assis72, G. Avila11, E. Avocone57,46, A.M. Badescu75, A. Bakalova32, A. Balaceanu73, F. Barbato45,46, A. Bartz Mocellin85, J.A. Bellido13,69, C. Berat36, M.E. Bertaina63,52, G. Bhatta70, M. Bianciotto63,52, P.L. Biermannh, V. Binet5, K. Bismark39,7, T. Bister80,81, J. Biteau37, J. Blazek32, C. Bleve36, J. Blümer41, M. Boháčová32, D. Boncioli57,46, C. Bonifazi8,26, L. Bonneau Arbeletche21, N. Borodai70, J. Brackj, P.G. Brichetto Orchera7, F.L. Briechle42, A. Bueno78, S. Buitink15, M. Buscemi47,61, M. Büsken39,7, A. Bwembya80,81, K.S. Caballero-Mora66, S. Cabana-Freire79, L. Caccianiga59,49, I. Caracas38, R. Caruso58,47, A. Castellina54,52, F. Catalani18, G. Cataldi48, L. Cazon79, M. Cerda10, A. Cermenati45,46, J.A. Chinellato21, J. Chudoba32, L. Chytka33, R.W. Clay13, A.C. Cobos Cerutti6, R. Colalillo60,50, A. Coleman90, M.R. Coluccia48, R. Conceição72, A. Condorelli37, G. Consolati49,55, M. Conte56,48, F. Convenga41, D. Correia dos Santos28, P.J. Costa72, C.E. Covault84, M. Cristinziani44, C.S. Cruz Sanchez3, S. Dasso4,2, K. Daumiller41, B.R. Dawson13, R.M. de Almeida28, J. de Jesús7,41, S.J. de Jong80,81, J.R.T. de Mello Neto26,27, I. De Mitri45,46, J. de Oliveira17, D. de Oliveira Franco21, F. de Palma56,48, V. de Souza19, E. De Vito56,48, A. Del Popolo58,47, O. Deligny34, N. Denner32, L. Deval41,7, A. di Matteo52, M. Dobre73, C. Dobrigkeit21, J.C. D'Olivo68, L.M. Domingues Mendes72, J.C. dos Anjos, R.C. dos Anjos25, J. Ebr32, F. Ellwanger41, M. Emam80,81, R. Engel39,41, I. Epicoco56,48, M. Erdmann42, A. Etchegoyen7,12, C. Evoli45,46, H. Falcke80,82,81, J. Farmer89, G. Farrar88, A.C. Fauth21, N. Fazzinie, F. Feldbusch40, F. Fenu41,d, A. Fernandes72, B. Fick87, J.M. Figueira7, A. Filipčič77,76, T. Fitoussi41, B. Flaggs90, T. Fodran80, T. Fujii89,f, A. Fuster7,12, C. Galea80, C. Galelli59,49, B. García6, C. Gaudu38, H. Gemmeke40, F. Gesualdi7,41, A. Gherghel-Lascu73, P.L. Ghia34, U. Giaccari48, M. Giammarchi49, J. Glombitza42,g, F. Gobbi10, F. Gollan7, G. Golup1, M. Gómez Berisso1, P.F. Gómez Vitale11, J.P. Gongora11, J.M. González1, N. González7, I. Goos1, D. Góra70, A. Gorgi54,52, M. Gottowik79, T.D. Grubb13, F. Guarino60,50, G.P. Guedes22, E. Guido44, S. Hahn39, P. Hamal32, M.R. Hampel7, P. Hansen3, D. Harari1, V.M. Harvey13, A. Haungs41, T. Hebbeker42, C. Hojvate, J.R. Hörandel80,81, P. Horvath33, M. Hrabovský33, T. Huege41,15, A. Insolia58,47, P.G. Isar74, P. Janecek32, J.A. Johnsen85, J. Jurysek32, A. Kääpä38, K.H. Kampert38, B. Keilhauer41, A. Khakurdikar80, V.V. Kizakke Covilakam7,41, H.O. Klages41, M. Kleifges40, F. Knapp39, N. Kunka40, B.L. Lago16, N. Langner42, M.A. Leigui de Oliveira24, Y Lema-Capeans79, V. Lenok39, A. Letessier-Selvon35, I. Lhenry-Yvon34, D. Lo Presti58,47, L. Lopes72, L. Lu91, Q. Luce39, J.P. Lundquist76, A. Machado Payeras21, M. Majercakova32, D. Mandat32, B.C. Manning13, P. Mantsche, S. Marafico34, F.M. Mariani59,49, A.G. Mariazzi3, I.C. Mariş14, G. Marsella61,47, D. Martello56,48, S. Martinelli41,7, O. Martínez Bravo64, M.A. Martins79, M. Mastrodicasa57,46, H.J. Mathes41, J. Matthewsa, G. Matthiae62,51, E. Mayotte85,38, S. Mayotte85, P.O. Mazure, G. Medina-Tanco68, J. Meinert38, D. Melo7, A. Menshikov40, C. Merx41, S. Michal33, M.I. Micheletti5, L. Miramonti59,49, S. Mollerach1, F. Montanet36, L. Morejon38, C. Morello54,52, A.L. Müller32, K. Mulrey80,81, R. Mussa52, M. Muzio88, W.M. Namasaka38, S. Negi32, L. Nellen68, K. Nguyen87, G. Nicora9, M. Niculescu-Oglinzanu73, M. Niechciol44, D. Nitz87, D. Nosek31, V. Novotny31, L. Nožka33, A Nucita56,48, L.A. Núñez30, C. Oliveira19, M. Palatka32, J. Pallotta9, S. Panja32, G. Parente79, T. Paulsen38, J. Pawlowsky38, M. Pech32, J. Pękala70, R. Pelayo65, L.A.S. Pereira23, E.E. Pereira Martins39,7, J. Perez Armand20, C. Pérez Bertolli7,41, L. Perrone56,48, S. Petrera45,46, C. Petrucci57,46, T. Pierog41, M. Pimenta72, M. Platino7, B. Pont80, M. Pothast81,80, M. Pourmohammad Shahvar61,47, P. Privitera89, M. Prouza32, A. Puyleart87, S. Querchfeld38, J. Rautenberg38, D. Ravignani7, M. Reininghaus39, J. Ridky32, F. Riehn79, M. Risse44, V. Rizi57,46, W. Rodrigues de Carvalho80, E. Rodriguez7,41, J. Rodriguez Rojo11, M.J. Roncoroni7, S. Rossoni43, M. Roth41, E. Roulet1, A.C. Rovero4, P. Ruehl44, A. Saftoiu73, M. Saharan80, F. Salamida57,46, H. Salazar64, G. Salina51, J.D. Sanabria Gomez30, F. Sánchez7, E.M. Santos20, E. Santos32, F. Sarazin85, R. Sarmento72, R. Sato11, P. Savina91, C.M. Schäfer41, V. Scherini56,48, H. Schieler41, M. Schimassek34, M. Schimp38, F. Schlüter41, D. Schmidt39, O. Scholten15,i, H. Schoorlemmer80,81, P. Schovánek32, F.G. Schröder90,41, J. Schulte42, T. Schulz41, S.J. Sciutto3, M. Scornavacche7,41, A. Segreto53,47, S. Sehgal38, S.U. Shivashankara76, G. Sigl43, G. Silli7, O. Sima73,b, F. Simon40, R. Smau73, R. Šmída89, P. Sommersk, J.F. Soriano86, R. Squartini10, M. Stadelmaier32, D. Stanca73, S. Stanič76, J. Stasielak70, P. Stassi36, S. Strähnz39, M. Straub42, M. Suárez-Durán14, T. Suomijärvi37, A.D. Supanitsky7, Z. Svozilikova32, Z. Szadkowski71, A. Tapia29, C. Taricco63,52, C. Timmermans81,80, O. Tkachenko41, P. Tobiska32, C.J. Todero Peixoto18, B. Tomé72, Z. Torrès36, A. Travaini10, P. Travnicek32, C. Trimarelli57,46, M. Tueros3, M. Unger41, L. Vaclavek33, M. Vacula33, J.F. Valdés Galicia68, L. Valore60,50, E. Varela64, A. Vásquez-Ramírez30, D. Veberič41, C. Ventura27, I.D. Vergara Quispe3, V. Verzi51, J. Vicha32, J. Vink83, J. Vlastimil32, S. Vorobiov76, C. Watanabe26, A.A. Watsonc, A. Weindl41, L. Wiencke85, H. Wilczyński70, D. Wittkowski38, B. Wundheiler7, B. Yue38, A. Yushkov32, O. Zapparrata14, E. Zas79, D. Zavrtanik76,77, M. Zavrtanik77,76

— • —

1 Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
2 Departamento de Física and Departamento de Ciencias de la Atmósfera y los Océanos, FCEyN, Universidad de Buenos Aires and CONICET, Buenos Aires, Argentina
3 IFLP, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
4 Instituto de Astronomía y Física del Espacio (IAFE, CONICET-UBA), Buenos Aires, Argentina
5 Instituto de Física de Rosario (IFIR) - CONICET/U.N.R. and Facultad de Ciencias Bioquímicas y Farmacéuticas U.N.R., Rosario, Argentina
6 Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), and Universidad Tecnológica Nacional - Facultad Regional Mendoza (CONICET/CNEA), Mendoza, Argentina
7 Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
8 International Center of Advanced Studies and Instituto de Ciencias Físicas, ECyT-UNSAM and CONICET, Campus Miguelete - San Martín, Buenos Aires, Argentina
9 Laboratorio Atmósfera - Departamento de Investigaciones en Láseres y sus Aplicaciones - UNIDEF (CITEDEF-CONICET), Argentina
10 Observatorio Pierre Auger, Malargüe, Argentina
11 Observatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, Argentina
12 Universidad Tecnológica Nacional - Facultad Regional Buenos Aires, Buenos Aires, Argentina
13 University of Adelaide, Adelaide, S.A., Australia
14 Université Libre de Bruxelles (ULB), Brussels, Belgium
15 Vrije Universiteit Brussels, Brussels, Belgium
16 Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Petropolis, Brazil
17 Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro (IFRJ), Brazil
18 Universidade de São Paulo, Escola de Engenharia de Lorena, Lorena, SP, Brazil
19 Universidade de São Paulo, Instituto de Física de São Carlos, São Carlos, SP, Brazil
20 Universidade de São Paulo, Instituto de Física, São Paulo, SP, Brazil
21 Universidade Estadual de Campinas, IFGW, Campinas, SP, Brazil
22 Universidade Estadual de Feira de Santana, Feira de Santana, Brazil
23 Universidade Federal de Campina Grande, Centro de Ciencias e Tecnologia, Campina Grande, Brazil
24 Universidade Federal do ABC, Santo André, SP, Brazil
25 Universidade Federal do Paraná, Setor Palotina, Palotina, Brazil
26 Universidade Federal do Rio de Janeiro, Instituto de Física, Rio de Janeiro, RJ, Brazil
27 Universidade Federal do Rio de Janeiro (UFRJ), Observatório do Valongo, Rio de Janeiro, RJ, Brazil
28 Universidade Federal Fluminense, EEIMVR, Volta Redonda, RJ, Brazil
29 Universidad de Medellín, Medellín, Colombia
30 Universidad Industrial de Santander, Bucaramanga, Colombia
31 Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
32 Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
33 Palacky University, Olomouc, Czech Republic
34 CNRS/IN2P3, IJCLab, Université Paris-Saclay, Orsay, France
35 Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Sorbonne Université, Université de Paris, CNRS-IN2P3, Paris, France
36 Univ. Grenoble Alpes, CNRS, Grenoble Institute of Engineering Univ. Grenoble Alpes, LPSC-IN2P3, 38000 Grenoble, France
37 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France
38 Bergische Universität Wuppertal, Department of Physics, Wuppertal, Germany
39 Karlsruhe Institute of Technology (KIT), Institute for Experimental Particle Physics, Karlsruhe, Germany
40 Karlsruhe Institute of Technology (KIT), Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
41 Karlsruhe Institute of Technology (KIT), Institute for Astroparticle Physics, Karlsruhe, Germany
42 RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
43 Universität Hamburg, II. Institut für Theoretische Physik, Hamburg, Germany
44 Universität Siegen, Department Physik - Experimentelle Teilchenphysik, Siegen, Germany
45 Gran Sasso Science Institute, L'Aquila, Italy
46 INFN Laboratori Nazionali del Gran Sasso, Assergi (L'Aquila), Italy
47 INFN, Sezione di Catania, Catania, Italy
48 INFN, Sezione di Lecce, Lecce, Italy
49 INFN, Sezione di Milano, Milano, Italy
50 INFN, Sezione di Napoli, Napoli, Italy
51 INFN, Sezione di Roma “Tor Vergata”, Roma, Italy
52 INFN, Sezione di Torino, Torino, Italy
53 Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy
54 Osservatorio Astrofisico di Torino (INAF), Torino, Italy
55 Politecnico di Milano, Dipartimento di Scienze e Tecnologie Aerospaziali , Milano, Italy
56 Università del Salento, Dipartimento di Matematica e Fisica “E. De Giorgi”, Lecce, Italy
57 Università dell'Aquila, Dipartimento di Scienze Fisiche e Chimiche, L'Aquila, Italy
58 Università di Catania, Dipartimento di Fisica e Astronomia “Ettore Majorana“, Catania, Italy
59 Università di Milano, Dipartimento di Fisica, Milano, Italy
60 Università di Napoli “Federico II”, Dipartimento di Fisica “Ettore Pancini”, Napoli, Italy
61 Università di Palermo, Dipartimento di Fisica e Chimica ”E. Segrè”, Palermo, Italy
62 Università di Roma “Tor Vergata”, Dipartimento di Fisica, Roma, Italy
63 Università Torino, Dipartimento di Fisica, Torino, Italy
64 Benemérita Universidad Autónoma de Puebla, Puebla, México
65 Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas del Instituto Politécnico Nacional (UPIITA-IPN), México, D.F., México
66 Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, México
67 Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, México
68 Universidad Nacional Autónoma de México, México, D.F., México
69 Universidad Nacional de San Agustin de Arequipa, Facultad de Ciencias Naturales y Formales, Arequipa, Peru
70 Institute of Nuclear Physics PAN, Krakow, Poland
71 University of Łódź, Faculty of High-Energy Astrophysics,Łódź, Poland
72 Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisboa, Portugal
73 “Horia Hulubei” National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania
74 Institute of Space Science, Bucharest-Magurele, Romania
75 University Politehnica of Bucharest, Bucharest, Romania
76 Center for Astrophysics and Cosmology (CAC), University of Nova Gorica, Nova Gorica, Slovenia
77 Experimental Particle Physics Department, J. Stefan Institute, Ljubljana, Slovenia
78 Universidad de Granada and C.A.F.P.E., Granada, Spain
79 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
80 IMAPP, Radboud University Nijmegen, Nijmegen, The Netherlands
81 Nationaal Instituut voor Kernfysica en Hoge Energie Fysica (NIKHEF), Science Park, Amsterdam, The Netherlands
82 Stichting Astronomisch Onderzoek in Nederland (ASTRON), Dwingeloo, The Netherlands
83 Universiteit van Amsterdam, Faculty of Science, Amsterdam, The Netherlands
84 Case Western Reserve University, Cleveland, OH, USA
85 Colorado School of Mines, Golden, CO, USA
86 Department of Physics and Astronomy, Lehman College, City University of New York, Bronx, NY, USA
87 Michigan Technological University, Houghton, MI, USA
88 New York University, New York, NY, USA
89 University of Chicago, Enrico Fermi Institute, Chicago, IL, USA
90 University of Delaware, Department of Physics and Astronomy, Bartol Research Institute, Newark, DE, USA
91 University of Wisconsin-Madison, Department of Physics and WIPAC, Madison, WI, USA
———
a Louisiana State University, Baton Rouge, LA, USA
b also at University of Bucharest, Physics Department, Bucharest, Romania
c School of Physics and Astronomy, University of Leeds, Leeds, United Kingdom
d now at Agenzia Spaziale Italiana (ASI). Via del Politecnico 00133, Roma, Italy
e Fermi National Accelerator Laboratory, Fermilab, Batavia, IL, USA
f now at Graduate School of Science, Osaka Metropolitan University, Osaka, Japan
g now at ECAP, Erlangen, Germany
h Max-Planck-Institut für Radioastronomie, Bonn, Germany
i also at Kapteyn Institute, University of Groningen, Groningen, The Netherlands
j Colorado State University, Fort Collins, CO, USA
k Pennsylvania State University, University Park, PA, USA

Acknowledgments

The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are very grateful to the following agencies and organizations for financial support:

Argentina – Comisión Nacional de Energía Atómica; Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Gobierno de la Provincia de Mendoza; Municipalidad de Malargüe; NDM Holdings and Valle Las Leñas; in gratitude for their continuing cooperation over land access; Australia – the Australian Research Council; Belgium – Fonds de la Recherche Scientifique (FNRS); Research Foundation Flanders (FWO); Brazil – Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Financiadora de Estudos e Projetos (FINEP); Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ); São Paulo Research Foundation (FAPESP) Grants No. 2019/10151-2, No. 2010/07359-6 and No. 1999/05404-3; Ministério da Ciência, Tecnologia, Inovações e Comunicações (MCTIC); Czech Republic – Grant No. MSMT CR LTT18004, LM2015038, LM2018102, CZ.02.1.01/0.0/0.0/16_013/0001402, CZ.02.1.01/0.0/0.0/18_046/0016010 and CZ.02.1.01/0.0/0.0/17_049/0008422; France – Centre de Calcul IN2P3/CNRS; Centre National de la Recherche Scientifique (CNRS); Conseil Régional Ile-de-France; Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS); Département Sciences de l'Univers (SDU-INSU/CNRS); Institut Lagrange de Paris (ILP) Grant No. LABEX ANR-10-LABX-63 within the Investissements d'Avenir Programme Grant No. ANR-11-IDEX-0004-02; Germany – Bundesministerium für Bildung und Forschung (BMBF); Deutsche Forschungsgemeinschaft (DFG); Finanzministerium Baden-Württemberg; Helmholtz Alliance for Astroparticle Physics (HAP); Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF); Ministerium für Kultur und Wissenschaft des Landes Nordrhein-Westfalen; Ministerium für Wissenschaft, Forschung und Kunst des Landes Baden-Württemberg; Italy – Istituto Nazionale di Fisica Nucleare (INFN); Istituto Nazionale di Astrofisica (INAF); Ministero dell'Istruzione, dell'Universitá e della Ricerca (MIUR); CETEMPS Center of Excellence; Ministero degli Affari Esteri (MAE), ICSC Centro Nazionale di Ricerca in High Performance Computing, Big Data and Quantum Computing, funded by European Union NextGenerationEU, reference code CN_00000013; México – Consejo Nacional de Ciencia y Tecnología (CONACYT) No. 167733; Universidad Nacional Autónoma de México (UNAM); PAPIIT DGAPA-UNAM; The Netherlands – Ministry of Education, Culture and Science; Netherlands Organisation for Scientific Research (NWO); Dutch national e-infrastructure with the support of SURF Cooperative; Poland -- Ministry of Education and Science, grants No.~DIR/WK/2018/11 and 2022/WK/12; National Science Centre, grants No.~2016/22/M/ST9/00198, 2016/23/B/ST9/01635, 2020/39/B/ST9/01398, and 2022/45/B/ST9/02163; Portugal – Portuguese national funds and FEDER funds within Programa Operacional Factores de Competitividade through Fundação para a Ciência e a Tecnologia (COMPETE); Romania – Ministry of Research, Innovation and Digitization, CNCS-UEFISCDI, contract no. 30N/2023 under Romanian National Core Program LAPLAS VII, grant no. PN 23 21 01 02 and project number PN-III-P1-1.1-TE-2021-0924/TE57/2022, within PNCDI III; Slovenia – Slovenian Research Agency, grants P1-0031, P1-0385, I0-0033, N1-0111; Spain – Ministerio de Economía, Industria y Competitividad (FPA2017-85114-P and PID2019-104676GB-C32), Xunta de Galicia (ED431C 2017/07), Junta de Andalucía (SOMM17/6104/UGR, P18-FR-4314) Feder Funds, RENATA Red Nacional Temática de Astropartículas (FPA2015-68783-REDT) and María de Maeztu Unit of Excellence (MDM-2016-0692); USA – Department of Energy, Contracts No. DE-AC02-07CH11359, No. DE-FR02-04ER41300, No. DE-FG02-99ER41107 and No. DE-SC0011689; National Science Foundation, Grant No. 0450696; The Grainger Foundation; Marie Curie-IRSES/EPLANET; European Particle Physics Latin American Network; and UNESCO.

Last modified on 2023-06-14.