Observation of the suppression of the flux of cosmic rays above 4×1019eV

Multitudinario:458

doi:10.1103/PhysRevLett.101.061101

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Multitudinario:458 "Observation of the suppression of the flux of cosmic rays above 4×1019eV" (2008) Physical Review Letters. 101(6)

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Abstract:

The energy spectrum of cosmic rays above 2.5×1018eV, derived from 20000 events recorded at the Pierre Auger Observatory, is described. The spectral index γ of the particle flux, JE-γ, at energies between 4×1018eV and 4×1019eV is 2.69±0.02(stat)±0.06(syst), steepening to 4.2±0.4(stat)±0.06(syst) at higher energies. The hypothesis of a single power law is rejected with a significance greater than 6 standard deviations. The data are consistent with the prediction by Greisen and by Zatsepin and Kuz'min. © 2008 The American Physical Society.

Registro:

Documento:	Artículo
Título:	Observation of the suppression of the flux of cosmic rays above 4×1019eV
Autor:	Multitudinario:458
Filiación:	Universidad Tecnológica Nacional, FR-Mendoza, Argentina LIP and Instituto Superior Técnico, Lisboa, Portugal Istituto di Fisica Dello Spazio Interplanetario (INAF), Università di Torino, Sezione INFN, Torino, Italy Universidad Catolica de Bolivia, La Paz, Bolivia Laboratoire AstroParticule et Cosmologie, Université Paris 7, IN2P3/CNRS, Paris, France Centro Atómico Bariloche, Comision Nacional de Energía Atómica and Instituto Balseiro (CNEA-UNC), San Carlos de Bariloche, Argentina New York University, New York, NY, United States Ohio State University, Columbus, OH, United States Universidad de Santiago de Compostela, Spain Sezione INFN di Napoli, Napoli, Italy University of Wisconsin, Milwaukee, WI, United States Northeastern University, Boston, MA, United States Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy Università di Torino, Sezione INFN, Torino, Italy University of California, Los Angeles, CA, United States INFN, Laboratori Nazionali Del Gran Sasso, Assergi (L'Aquila), Italy Universidad Complutense de Madrid, Madrid, Spain Forschungszentrum Karlsruhe, Institut für Prozessdatenverarbeitung und Elektronik, Germany Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, San Carlos de Bariloche, Argentina Pennsylvania State University, University Park, PA, United States Laboratoire de Physique Nucléaire et de Hautes Energies, Universités Paris 6 and 7, IN2P3/CNRS, Paris Cedex 05, France University of Chicago, Enrico Fermi Institute, Chicago, IL, United States Pierre Auger Southern Observatory, Comisión Nacional de Energía Atómica, Malargüe, Argentina Universität Siegen, Siegen, Germany IFLP, Universidad Nacional de la Plata, CONICET, La Plata, Argentina Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ, Brazil Universidade Estadual Do Sudoeste da Bahia, Vitoria da Conquista, BA, Brazil Colorado State University, Fort Collins, CO, United States University of New Mexico, Albuquerque, NM, United States Bergische Universität Wuppertal, Wuppertal, Germany University of Wisconsin, Madison, WI, United States Laboratoire de Physique Subatomique et de Cosmologie, IN2P3/CNRS, INPG, Grenoble, France Universität Karlsruhe (TH), Institut für Experimentelle Kernphysik (IEKP), Karlsruhe, Germany Dipartimento di Fisica, Università Del Salento, Sezione INFN, Lecce, Italy Max-Planck-Institut für Radioastronomie, Bonn, Germany Fermilab, Batavia, IL, United States Università dell'Aquila, INFN, L'Aquila, Italy Osservatorio Astrofisico di Arcetri, Florence, Italy School of Physics and Astronomy, University of Leeds, United Kingdom Forschungszentrum Karlsruhe, Institut für Kernphysik, Karlsruhe, Germany Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic Colorado State University, Pueblo, CO, United States Universidad de Granada, C.A.F.P.E., Granada, Spain Case Western Reserve University, Cleveland, OH, United States University of Minnesota, Minneapolis, MN, United States Università di Milano, Sezione INFN, Milan, Italy Università di Catania, Sezione INFN, Catania, Italy Universidade de Sao Paulo, Instituto de Fisica, Sao Paulo, SP, Brazil Universidade Estadual de Campinas, IFGW, Campinas, SP, Brazil Michigan Technological University, Houghton, MI, United States Institute of Integrated Information Systems, University of Leeds, United Kingdom University of Adelaide, Adelaide, SA, Australia Laboratorio Tandar, Centro Atómico Constituyentes, CNEA, Buenos Aires, Argentina University of Pennsylvania, Philadelphia, PA, United States Pierre Auger Southern Observatory, Malargüe, Argentina IMAPP, Radboud University, Nijmegen, Netherlands NIKHEF, Amsterdam, Netherlands Laboratoire de l'Accélérateur Linéaire, Université Paris-Sud, IN2P3/CNRS, Orsay, France Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico Laboratory for Astroparticle Physics, University of Nova Gorica, Slovenia Universidad Tecnológica Nacional, FR-Mendoza and Fundación, Universidad Tecnológica Nacional, Argentina Universidade Federal Do Rio de Janeiro, Instituto de Física, Rio de Janeiro, RJ, Brazil Universidad de Alcalá, Alcalá de Henares (Madrid), Spain Institut de Physique Nucléaire, Université Paris- Sud, IN2P3/CNRS, Orsay, France Università di Napoli Federico II, Sezione INFN, Napoli, Italy Università di Roma II Tor Vergata, Sezione INFN, Roma, Italy RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany Institute for Nuclear Science and Technology, Hanoi, Viet Nam Universidad Nacional Autonoma de Mexico, Mexico, D.F., Mexico Louisiana State University, Baton Rouge, LA, United States University of Hawaii, Honolulu, HI, United States Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, CONICET, Argentina ASTRON, Dwingeloo, Netherlands J. Stefan Institute, Ljubljana, Slovenia Pontifícia Universidade Católica, Rio de Janeiro, RJ, Brazil University of Łodź, Łodź, Poland Departamento de Física, Centro Atómico Bariloche, CONICET, Argentina Universidade Federal Fluminense, Instituto de Fisica, Niterói, RJ, Brazil Centro de Investigación y de Estudios Avanzados Del IPN (CINVESTAV), México, D.F., Mexico Institute of Nuclear Physics PAN, Krakow, Poland Departamento de Física, FCEyN, CONICET, Argentina Universidade Estadual de Feira de Santana, Brazil Kernfysisch Versneller Instituut, University of Groningen, Groningen, Netherlands Universidade Federal Do ABC, Santo André, SP, Brazil Benemérita Universidad Autónoma de Puebla, Puebla, Mexico Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, UTN-FRBA, Argentina Southern University, Baton Rouge, LA, United States University of Utah, Salt Lake City, UT, United States Charles University, Institute of Particle and Nuclear Physics, Prague, Czech Republic Centro de Investigaciones en Láseres y Aplicaciones, CITEFA, CONICET, Argentina Instituto de Física Corpuscular, CSIC-Universitat de València, Valencia, Spain Universidade Federal da Bahia, Salvador, BA, Brazil Dipartimento di Ingegneria dell'Innovazione, Università Del Salento, Sezione INFN, Lecce, Italy Università di Genova, Sezione INFN, Genova, Italy Instituto de Astronomía y Física Del Espacio (CONICET), Buenos Aires, Argentina Colorado School of Mines, Golden, CO, United States Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford, United Kingdom University of Nebraska, Lincoln, NE, United States Argonne National Laboratory, Argonne, IL, United States Universidad Mayor de San Andrés, Bolivia Departamento de Física, Universidad Nacional de la Plata, Fundación Universidad Tecnológica Nacional, Argentina
Palabras clave:	Cosmology; Energy spectra; Particle fluxes; Pierre Auger observatory; Power-law; Spectral indices; Standard deviation; Cosmic rays
Año:	2008
Volumen:	101
Número:	6
DOI:	http://dx.doi.org/10.1103/PhysRevLett.101.061101
Título revista:	Physical Review Letters
Título revista abreviado:	Phys Rev Lett
ISSN:	00319007
CODEN:	PRLTA
Registro:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v101_n6_p_Multitudinario

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http://www.auger.org/technical_info/spectrum2008/

Citas:

---------- APA ----------

(2008) . Observation of the suppression of the flux of cosmic rays above 4×1019eV. Physical Review Letters, 101(6).
http://dx.doi.org/10.1103/PhysRevLett.101.061101

---------- CHICAGO ----------

Multitudinario:458. "Observation of the suppression of the flux of cosmic rays above 4×1019eV" . Physical Review Letters 101, no. 6 (2008).
http://dx.doi.org/10.1103/PhysRevLett.101.061101

---------- MLA ----------

Multitudinario:458. "Observation of the suppression of the flux of cosmic rays above 4×1019eV" . Physical Review Letters, vol. 101, no. 6, 2008.
http://dx.doi.org/10.1103/PhysRevLett.101.061101

---------- VANCOUVER ----------

Multitudinario:458. Observation of the suppression of the flux of cosmic rays above 4×1019eV. Phys Rev Lett. 2008;101(6).
http://dx.doi.org/10.1103/PhysRevLett.101.061101