Artículo
Multitudinario:463 "Measurement of the cosmic ray spectrum above 4 × 10 18 eV using inclined events detected with the Pierre Auger Observatory" (2015) Journal of Cosmology and Astroparticle Physics. 2015(8)
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Abstract:
A measurement of the cosmic-ray spectrum for energies exceeding 4×10 18 eV is presented, which is based on the analysis of showers with zenith angles greater than 60° detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above 5.3×10 18 eV, the "ankle", the flux can be described by a power law E -γ with index γ=2.70 ± 0.02 (stat) ± 0.1 (sys) followed by a smooth suppression region. For the energy (E s ) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find E s =(5.12 ± 0.25 (stat) +1.0 -1.2 (sys))×10 19 eV. © 2015 IOP Publishing Ltd and Sissa Medialab srl.
Registro:
| Documento: | Artículo |
| Título: | Measurement of the cosmic ray spectrum above 4 × 10 18 eV using inclined events detected with the Pierre Auger Observatory |
| Autor: | Multitudinario:463 |
| 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, CONICET, Argentina IFLP, Universidad Nacional de la Plata, CONICET, La Plata, Argentina Instituto de Astronomía y Física Del Espacio (IAFE, 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 Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Universidad Tecnológica Nacional, Facultad Regional Mendoza (CONICET/CNEA), Mendoza, Argentina Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, 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, S.A., Australia Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ, Brazil Universidade de São Paulo, Escola de Engenharia de Lorena, Lorena, SP, Brazil Universidade de São Paulo, Instituto de Física de São Carlos, 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 de Pelotas, Pelotas, RS, 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 Universidad Industrial de Santander, Bucaramanga, Colombia 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 Grenoble-Alpes, CNRS/IN2P3, France Station de Radioastronomie de Nançay, Observatoire de Paris, CNRS/INSU, France SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, France Bergische Universität Wuppertal, Wuppertal, Germany Karlsruhe Institute of Technology, Campus South, Institut für Experimentelle Kernphysik (IEKP), Karlsruhe, 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 Max-Planck-Institut für Radioastronomie, Bonn, Germany RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany Universität Hamburg, Hamburg, Germany Universität Siegen, Siegen, Germany Università di Milano, Sezione INFN, Milan, Italy Università di Napoli Federico II, Sezione INFN, Napoli, Italy Università di Roma II Tor Vergata, Sezione INFN, Roma, Italy Università di Catania, Sezione INFN, Catania, Italy Università di Torino, Sezione INFN, Torino, Italy Dipartimento di Matematica e Fisica E. de Giorgi, Università Del Salento, Sezione INFN, Lecce, Italy Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, INFN, Italy Gran Sasso Science Institute (INFN), L'Aquila, Italy Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy INFN, Laboratori Nazionali Del Gran Sasso, Assergi (L'Aquila), Italy Osservatorio Astrofisico di Torino (INAF), Università di Torino, Sezione INFN, Torino, Italy Benemérita Universidad Autónoma de Puebla, Puebla, Mexico Centro de Investigación y de Estudios Avanzados Del IPN (CINVESTAV), México, Mexico U. Profesional Interdisciplinaria en Ing. y Tecnologias Avanzadas Del Instituto Politecnico Nacional, México, D.F., Mexico Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, Mexico Universidad Nacional Autónoma de México, México, D.F., Mexico IMAPP, Radboud University, Nijmegen, Netherlands KVI-Center for Advanced Radiation Technology, University of Groningen, Netherlands Nikhef, Science Park, Amsterdam, Netherlands ASTRON, Dwingeloo, Netherlands Institute of Nuclear Physics PAN, Krakow, Poland University of Łódź, Łódź, Poland Laboratorio de Instrumentacao e Fisica Experimental de Particulas-LIP, Instituto Superior Técnico-IST, Universidade de Lisboa-UL, Portugal Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania Institute of Space Sciences, Bucharest, Romania University of Bucharest, Physics Department, Romania University Politehnica of Bucharest, Romania Experimental Particle Physics Department, J. Stefan Institute, Ljubljana, Slovenia Laboratory for Astroparticle Physics, University of Nova Gorica, Slovenia 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 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 Department of Physics and Astronomy, Lehman College, City University of New YorkNY, United States Fermilab, Batavia, IL, 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 Vrije Universiteit Brussels, Belgium University of Liverpool, United Kingdom |
| Palabras clave: | cosmic ray experiments; ultra high energy cosmic rays |
| Año: | 2015 |
| Volumen: | 2015 |
| Número: | 8 |
| DOI: | http://dx.doi.org/10.1088/1475-7516/2015/08/049 |
| 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_v2015_n8_p_Multitudinario |
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Citas:
---------- APA ----------
(2015) . Measurement of the cosmic ray spectrum above 4 × 10 18 eV using inclined events detected with the Pierre Auger Observatory. Journal of Cosmology and Astroparticle Physics, 2015(8).http://dx.doi.org/10.1088/1475-7516/2015/08/049
---------- CHICAGO ----------
Multitudinario:463. "Measurement of the cosmic ray spectrum above 4 × 10 18 eV using inclined events detected with the Pierre Auger Observatory" . Journal of Cosmology and Astroparticle Physics 2015, no. 8 (2015).http://dx.doi.org/10.1088/1475-7516/2015/08/049
---------- MLA ----------
Multitudinario:463. "Measurement of the cosmic ray spectrum above 4 × 10 18 eV using inclined events detected with the Pierre Auger Observatory" . Journal of Cosmology and Astroparticle Physics, vol. 2015, no. 8, 2015.http://dx.doi.org/10.1088/1475-7516/2015/08/049
---------- VANCOUVER ----------
Multitudinario:463. Measurement of the cosmic ray spectrum above 4 × 10 18 eV using inclined events detected with the Pierre Auger Observatory. J. Cosmol. Astroparticle Phys. 2015;2015(8).http://dx.doi.org/10.1088/1475-7516/2015/08/049
