The Pierre Auger Observatory II: Studies of Cosmic Ray Composition and Hadronic Interaction models

  title={The Pierre Auger Observatory II: Studies of Cosmic Ray Composition and Hadronic Interaction models},
  author={The Pierre Auger Collaboration P. Abreu and Marco Aglietta and E. j. Ahn and Ivone F. M. Albuquerque and Denis Allard and Ingomar Allekotte and J. Allen and P. Allison and Jesus Alvarez Castillo and Jaime Alvarez-Mu{\~n}iz and M. Ambrosio and Amin Aminaei and Luis A. Anchordoqui and Sofia Andringa and T. Antivci'c and Anna Anzalone and Carla Aramo and Ernesto Arganda and Fernando Arqueros and Hern{\'a}n Asorey and P. Assis and Julien Aublin and Maximo Ave and Michel Avenier and Gualberto Avila and T. Backer and Matthias Norbert Balzer and Kerri B Barber and Ademarlaudo F. Barbosa and R{\'e}mi Bardenet and S. L. C. Barroso and Brian M. Baughman and Julia Bauml and James J. Beatty and B. R. Becker and Kurt H. Becker and A. Bell'etoile and J Almirall Bellido and Segev BenZvi and Corinne B{\'e}rat and Xavier Bertou and Peter L. Biermann and P. Billoir and Francisco Blanco and Miguel Blanco and Carla Bleve and Hans Blumer and Martina Boh'avcov'a and Denise Boncioli and C. Bonifazi and Raffaella Bonino and Nataliia Borodai and Jeffrey Brack and Pedro Brogueira and William Cullen Brown and Ronald Bruijn and Peter Buchholz and A. Bueno and Ross E. Burton and Karen S. Caballero-Mora and Laurenţiu I. Caramete and Rossella Caruso and Antonella Castellina and Osvaldo Catalano and Gabriella Cataldi and Lorenzo Cazon and Rosanna Cester and Jo{\"e} Chauvin and S. H. Cheng and Andrea Chiavassa and Jose Augusto Chinellato and Aaron S. Chou and Jiri Chudoba and Roger Clay and M. R. Coluccia and Ruben Conceiccao and Fernando Contreras and H. Cook and Mathew J Cooper and Joseph Coppens and Alain Cordier and U. Cotti and St{\'e}phane Coutu and Corbin Edward Covault and Alexandre Creusot and A. Criss and James W. Cronin and A. Curutiu and Sylvie Dagoret-Campagne and Richard Dallier and Sergio Dasso and Kai Daumiller and Bruce R. Dawson and Rog{\'e}rio M. de Almeida and Manlio De Domenico and Cinzia De Donato and Sijbrand J. de Jong and Gonzalo de la Vega and W.J.M. de Mello Junior and Jo{\~a}o de Mello Neto and Ivan De Mitri and Vitor de Souza and Krijn D. de Vries and Guillaume Decerprit and Luis del Peral and Olivier Deligny and Hans Peter Dembinski and Niraj Dhital and Claudio Di Giulio and J. C. Chirinos Diaz and Mary Lucia D'iaz Castro and P. N. Diep and Carola Dobrigkeit and Wendy Docters and Juan Carlos D'Olivo and P. N. Dong and Alexei V. Dorofeev and Jo{\~a}o C. Anjos and M. T. Dova and Domenico D'urso and Ioana Duţan and Jan Ebr and Ralph Engel and Martin Erdmann and Carlos Ourivio Escobar and Alberto Etchegoyen and Pedro Facal San Luis and Isai Fajardo Tapia and Heino Falcke and Glennys R. Farrar and A. Campos Fauth and Norberto Fazzini and Andrew P Ferguson and A. Ferrero and Brian E. Fick and Alberto Filevich and Andrej Filipvcivc and Stefan Fliescher and Claudia Fracchiolla and Eric Dani{\"e}l Fraenkel and U. Frohlich and Bryan C. Fuchs and Romain Gaior and R. F. Gamarra and Silvia Gambetta and Beatriz Garc'ia and Diego Garc{\'i}a G{\'a}mez and Diego Garc{\'i}a-Pinto and Alberto Gasc{\'o}n and Hartmut Gemmeke and Kathleen Gesterling and Piera Luisa Ghia and Ugo Gregorio Giaccari and Maria Giller and Henry D. Glass and Michael S. Gold and Geraldina Golup and F. A. G{\'o}mez Albarrac{\'i}n and Mariano G'omez Berisso and Patr'icia Gonccalves and Daniel Gonzalez and J. G. Gonzalez and Ben Gookin and Dariusz G'ora and Alessio Gorgi and Philippe Gouffon and Sara Rebecca Gozzini and Eric William Grashorn and S. F. Grebe and Nathan Griffith and Marius Grigat and Aurelio F. Grillo and Yann Guardincerri and Fausto Guarino and Germano P. Guedes and Alejandro Guzman and John D. Hague and Patricia Hansen and Diego D. Harari and S. Harmsma and John L. Harton and Andreas Haungs and Thomas Hebbeker and D. Heck and Alexander E. Herv{\'e} and Carlos Hojvat and Nicholas Hollon and V. C. Holmes and Piotr Homola and Jorg R. Horandel and Andreas Horneffer and Miroslav Hrabovsk'y and T. Huege and Antonio Insolia and F. Ionita and Antonio Italiano and Cecilia Jarne and Sarka Jiraskova and Mariela Josebachuili and Kre{\vs}o Kadija and K-H. Kampert and Pavel Karhan and Peter Kasper and Bal'azs K'egl and Bianca Keilhauer and Azadeh Keivani and John Lawrence Kelley and Ernesto Kemp and Roger M. Kieckhafer and H. Klages and M. Kleifges and Jonny Kleinfeller and Johannes Knapp and Dy. Holm Koang and Kumiko Kotera and Nicole Krohm and Oliver Kromer and Daniel Kruppke-Hansen and Frederick Gabriel Ivar Kuehn and Daniel Kuempel and J. K. Kulbartz and Norbert Kunka and Giovanni La Rosa and Cyril Lachaud and P. Lautridou and M.S.A.B. Leao and Denis Lebrun and Paul L. G. Lebrun and M. Leigui de Oliveira and Anne Lemi{\`e}re and Antoine Letessier-Selvon and Isabelle Lhenry-Yvon and Katrin Link and R. Garcia L'opez and Angeles Lopez Aguera and Karim Louedec and Julio Lozano Bahilo and Agustin Lucero and Marianne Ludwig and Haris Lyberis and Maria Concetta Maccarone and Carla Macolino and Simone Maldera and Du{\vs}an Mand{\'a}t and Paul Mantsch and Analisa G. Mariazzi and J-C. Marin and Vincent Marin and Ioana Codrina Mariş and H. R. Marquez Falcon and Giovanni Marsella and Daniele Martello and L. Martin and H. Martinez and Oscar Mart'inez Bravo and H. J. Mathes and James Matthews and J. A. Matthews and Giorgio Matthiae and Daniela Maurizio and Peter Mazur and Gustavo A. Medina-Tanco and Maximilien Melissas and Diego G. Melo and Ezio A. Menichetti and Alexander Menshikov and Philipp Mertsch and Christine Meurer and Savsa Mi'canovi'c and Mar{\'i}a Isabel Micheletti and Warner A. Miller and Lino Miramonti and Silvia Mollerach and Maria Monasor and D. Monnier Ragaigne and François Montanet and B. Morales and Carlo Morello and E. Moreno and Juan Carlos Gonzalez Moreno and Christopher L. Morris and Miguel Mostaf'a and C. A. Moura and Scott N. Mueller and Marcio Aparecido Muller and Gero Muller and M. Munchmeyer and Roberto Mussa and Gianni Navarra and Jos{\'e} Luis Pastor Navarro and Sergio S{\'a}nchez Navas and Petr Ne{\vc}esal and Lukas Nellen and Anna Nelles and Jens Neuser and P. T. Nhung and Lukas Niemietz and Nils Nierstenhoefer and Dave F. Nitz and Dalibor Nosek and Lyberis Novzka and Michal Nyklicek and J. Oehlschlager and Angela V. Olinto and V. M. Olmos-Gilbaja and M. Ortiz and Noelia Pacheco and Daniel Pakk Selmi-Dei and Miroslav Palatka and Juan Vicente Pallotta and N. Palmieri and Gonzalo Parente and Etienne Parizot and Alejandra Parra and R. D. Parsons and Sergio Pastor and Thomas Cantzon Paul and Miroslav Pech and Jan Pcekala and Rodrigo Pelayo and I. Pepe and Lorenzo M Perrone and Roberto Pesce and Emily Petermann and Sergio Petrera and Paolo Petrinca and Alessandro Petrolini and Yevgeniy Petrov and J. Petrovic and Carl Pfendner and N. S. Phan and Ricardo Piegaia and Tanguy Pierog and Pablo Pieroni and M{\'a}rio Pimenta and Valerio Pirronello and Manuel Platino and Victor Hugo Ponce and M. Pontz and Paolo Privitera and Michael Prouza and E. Quel and Sven Querchfeld and Julian Rautenberg and Olivier Ravel and Diego Ravignani and Beno{\^i}t Revenu and Jan Ř{\'i}dk{\'y} and Simone Riggi and Markus Risse and Pablo Ristori and H. Rivera and Vincenzo Rizi and J. B. Roberts and C. Robledo and Washington Rodrigues de Carvalho and G. Rodriguez and Julio Rodr{\'i}guez Martino and Jorge Rub'en Rodriguez Rojo and I. Rodr{\'i}guez-Cabo and Maria Dolores Rodr'iguez-Fr'ias and G. Ros and Jaime Rosado and Tomas Rossler and Markus Roth and B. Rouill'e-d'Orfeuil and Esteban Roulet and A. Clay R.W. Rovero and Christoph Ruhle and Francesco Salamida and Humberto Ibarguen Salazar and Gaetano Salina and Federico S'anchez and Marcos Santander and Catarina Espirito Santo and Elton J. G. Santos and Edivaldo Moura Santos and F. Sarazin and Biswaijt Sarkar and Subir Sarkar and Ricardo Sato and N. Scharf and Viviana Scherini and Harald Schieler and Peter Schiffer and A. Schmidt and Fabian Schmidt and Olaf Scholten and H. Schoorlemmer and Jaroslava Schovancova and Petr Schov'anek and Frank G. Schroder and Stefan Schulte and David Schuster and Sergio J. Sciutto and M. Scuderi and A. Segreto and Mariangela Settimo and Amir Hosein Shadkam and Ronald Cintra Shellard and Iv{\'a}n Sidelnik and Guenter Sigl and H. H. Silva L{\'o}pez and A. 'Smial kowski and Radom'ir vSm'ida and Gregory R. Snow and Paul Sommers and J. Sorokin and Harold M Spinka and Ruben Squartini and Samo Stani{\vc} and James Stapleton and Jaroslaw Stasielak and Maurice Stephan and E. Strazzeri and A. Stutz and Federico Suarez and Tiina Suomijarvi and Alberto Daniel Supanitsky and T. vSuvsa and Michael S. Sutherland and John Swain and Zbigniew Szadkowski and Marek Szuba and Alejandro Tamashiro and Alex Tapia and Mathieu Tartare and O. Tacscuau and C. G. Tavera Ruiz and Rodica Tcaciuc and Domenico Tegolo and Nguyen T. Thao and D. Thomas and Javier Tiffenberg and C. Timmermans D.K. Tiwari and Wieslaw Tkaczyk and Carlos Jos{\'e} Todero Peixoto and Bernardo Tom'e and Aurelio S. Tonachini and Pavel M. Tr{\'a}vn{\'i}cek and D. B. Tridapalli and G. Tristram and E. Trovato and Mat{\'i}as Tueros and Ralf Ulrich and Michael Unger and Martin Urban and Jose F. Vald{\'e}s Galicia and In{\'e}s Vali{\~n}o and Laura Valore and A. M. Berg and Enrique Varela and Bernardo Vargas C'ardenas and J. J. Rodr'iguez V'azquez and Ricardo V'azquez and Darko Veberivc and Valerio Verzi and Jakub Vicha and Mariela Videla and L. Villase{\~n}or and Hernan Wahlberg and P. Wahrlich and Oscar Wainberg and D. Walz and David S. Warner and Alan Andrew Watson and M. Weber and Klaus Weidenhaupt and Andreas Weindl and Stefan Westerhoff and B. J. Whelan and Grzegorz Wieczorek and Lawrence Richard Wiencke and B. Wilczy'nska and Henryk Wilczy'nski and Martin Will and C. Williams and Tobias Winchen and Lisa Lee Winders and M. G. Winnick and Michael Wommer and Brian Wundheiler and T. Yamamoto and T. Yapici and Patrick William Younk and G. Yuan and A. Yushkov and B. Zamorano and Enrique Zas and Danilo Zavrtanik and M. Zavrtnik and Ingyin Zaw and A. Zepeda and M. Zimbres-Silva and Michael S. Ziolkowski},
Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air showers. 

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