To interpret the mean depth of cosmic ray air shower maximum and its dispersion, we parametrize those two observables as functions of the first two moments of the ln A distribution. We examine the goodness of this simple method through simulations of test mass distributions. The application of the parameterization to Pierre Auger Observatory data allows one to study the energy dependence of the mean ln A and of its variance under the assumption of selected hadronic interaction models. We discuss possible implications of these dependences in term of interaction models and astrophysical cosmic ray sources. © 2013 IOP Publishing Ltd and Sissa Medialab srl.
Documento: | Artículo |
Título: | Interpretation of the depths of maximum of extensive air showers measured by the Pierre Auger Observatory |
Autor: | Multitudinario:508 |
Filiación: | Centro Atómico Bariloche, Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina Centro de Investigaciones en Láseres y Aplicaciones, CITEDEF, CONICET, Argentina Departamento de Física, FCEyN, Universidad de Buenos Aires y CONICET, Argentina IFLP, Universidad Nacional de la Plata, CONICET, La Plata, Argentina Instituto de Astronomá́ y Física Del Espacio (CONICET-UBA), Buenos Aires, Argentina Instituto de Física de Rosario (IFIR), CONICET/U.N.R., Facultad de Ciencias Bioquímicas y Farmacéuticas U.N.R., Rosario, Argentina Instituto de Tecnologá́s en Detección y Astropartículas, Buenos Aires, Argentina National Technological University, Faculty Mendoza (CONICET/CNEA), Mendoza, Argentina Observatorio Pierre Auger, Malargüe, Argentina Observatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, Argentina Universidad Tecnológica Nacional, Facultad Regional Buenos Aires, Buenos Aires, Argentina University of Adelaide, Adelaide, SA, Australia Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ, Brazil Universidade de São Paulo, Instituto de Física, São Carlos, SP, Brazil Universidade de São Paulo, Instituto de Física, São Paulo, SP, Brazil Universidade Estadual de Campinas, IFGW, Campinas, SP, Brazil Universidade Estadual de Feira de Santana, Brazil Universidade Federal da Bahia, Salvador, BA, Brazil Universidade Federal Do ABC, Santo André, SP, Brazil Universidade Federal Do Rio de Janeiro, Instituto de Física, Rio de Janeiro, RJ, Brazil Universidade Federal Fluminense, EEIMVR, Volta Redonda, RJ, Brazil Rudjer Bošković Institute, 10000 Zagreb, Croatia Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic Palacky University, RCPTM, Olomouc, Czech Republic Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, France Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier Grenoble, CNRS-IN2P3, France Station de Radioastronomie de Nanćay, Observatoire de Paris, CNRS/INSU, France SUBATECH, École des Mines de Nantes, Université de Nantes, France Bergische Universität Wuppertal, Wuppertal, Germany Karlsruhe Institute of Technology - Campus North, Institut für Kernphysik, Karlsruhe, Germany Karlsruhe Institute of Technology - Campus North, Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany Karlsruhe Institute of Technology - Campus South, Institut für Experimentelle Kernphysik (IEKP), Karlsruhe, Germany Max-Planck-Institut für Radioastronomie, Bonn, Germany RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany Universität Hamburg, Hamburg, Germany Universität Siegen, Siegen, Germany Dipartimento di Fisica dell'Universitá, INFN, Genova, Italy Universitá dell'Aquila, INFN, L'Aquila, Italy Universitá di Milano, Sezione INFN, Milan, Italy Universitá di Napoli Federico II, Sezione INFN, Napoli, Italy Universitá di Roma II Tor Vergata, Sezione INFN, Roma, Italy Universitá di Catania, Sezione INFN, Catania, Italy Universitá di Torino, Sezione INFN, Torino, Italy Dipartimento di Matematica e Fisica E. de Giorgi, Universitá Del Salento, Sezione INFN, Lecce, Italy Istituto di Astrošica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy Istituto di Fisica Dello Spazio Interplanetario (INAF), Universitá di Torino, Sezione INFN, Torino, Italy INFN, Laboratori Nazionali Del Gran Sasso, Assergi (L'Aquila), Italy Benemérita Universidad Autónoma de Puebla, Puebla, Mexico Centro de Investigación y de Estudios Avanzados Del IPN (CINVESTAV), Mexico Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico Universidad Nacional Autonoma de Mexico, Mexico, D.F., Mexico IMAPP, Radboud University Nijmegen, Netherlands Kernfysisch Versneller Instituut, University of Groningen, Groningen, Netherlands Nikhef, Science Park, Amsterdam, Netherlands ASTRON, Dwingeloo, Netherlands Institute of Nuclear Physics PAN, Krakow, Poland University of Lódź, Lódź, Poland LIP, Instituto Superior Técnico, Technical University of Lisbon, Portugal 'Horia Hulubei' National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania University of Bucharest, Physics Department, Romania University Politehnica of Bucharest, Romania J. Stefan Institute, Ljubljana, Slovenia Laboratory for Astroparticle Physics, University of Nova Gorica, Slovenia Institut de Física Corpuscular, CSIC, Universitat de Valéncia, Valencia, Spain Universidad Complutense de Madrid, Madrid, Spain Universidad de Alcalá, Alcalá de Henares (Madrid), Spain Universidad de Granada, C.A.F.P.E., Granada, Spain Universidad de Santiago de Compostela, Spain School of Physics and Astronomy, University of Leeds, United Kingdom Argonne National Laboratory, Argonne, IL, United States Case Western Reserve University, Cleveland, OH, United States Colorado School of Mines, Golden, CO, United States Colorado State University, Fort Collins, CO, United States Colorado State University, Pueblo, CO, United States Fermilab, Batavia, IL, United States Los Alamos National Laboratory, Los Alamos, NM, United States Louisiana State University, Baton Rouge, LA, United States Michigan Technological University, Houghton, MI, United States New York University, New York, NY, United States Northeastern University, Boston, MA, United States Ohio State University, Columbus, OH, United States Pennsylvania State University, University Park, PA, United States University of Chicago, Enrico Fermi Institute, Chicago, IL, United States University of Hawaii, Honolulu, HI, United States University of Nebraska, Lincoln, NE, United States University of New Mexico, Albuquerque, NM, United States University of Wisconsin, Madison, WI, United States University of Wisconsin, Milwaukee, WI, United States Institute for Nuclear Science and Technology (INST), Hanoi, Viet Nam Konan University, Japan Universidad Autonoma, Spain University of Maryland, United States NYU Abu Dhabi, United Arab Emirates |
Palabras clave: | cosmic ray experiments; ultra high energy cosmic rays |
Año: | 2013 |
Volumen: | 2013 |
Número: | 2 |
DOI: | http://dx.doi.org/10.1088/1475-7516/2013/02/026 |
Título revista: | Journal of Cosmology and Astroparticle Physics |
Título revista abreviado: | J. Cosmol. Astroparticle Phys. |
ISSN: | 14757516 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14757516_v2013_n2_p_Multitudinario |