We present a search for ultrarelativistic magnetic monopoles with the Pierre Auger observatory. Such particles, possibly a relic of phase transitions in the early Universe, would deposit a large amount of energy along their path through the atmosphere, comparable to that of ultrahigh-energy cosmic rays (UHECRs). The air-shower profile of a magnetic monopole can be effectively distinguished by the fluorescence detector from that of standard UHECRs. No candidate was found in the data collected between 2004 and 2012, with an expected background of less than 0.1 event from UHECRs. The corresponding 90% confidence level (C.L.) upper limits on the flux of ultrarelativistic magnetic monopoles range from 10-19(cm2 sr s)-1 for a Lorentz factor γ=109 to 2.5×10-21(cm2 sr s)-1 for γ=1012. These results - the first obtained with a UHECR detector - improve previously published limits by up to an order of magnitude. © 2016 American Physical Society.
Documento: | Artículo |
Título: | Search for ultrarelativistic magnetic monopoles with the Pierre Auger observatory |
Autor: | Multitudinario:413 |
Filiación: | Fachbereich 7 Physik - Experimentelle Teilchenphysik, Universität Siegen, Germany Lab. de Instrumentacao e Fis. Experimental de Particulas - LIP and Instituto Superior Tecnico - IST, Universidade de Lisboa - UL, Portugal Osservatorio Astrofisico di Torino (INAF), Torino, Italy INFN, Sezione di Torino, Italy Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, France Inst. de Física, Universidade de São Paulo, São Paulo, Brazil Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), Argentina Instituto de Tecnologías en Detección y Astropartículas (CNEA CONICET, UNSAM), Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Argentina Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Argentina Universidad Nacional Autónoma de México, Mexico Universidad de Santiago de Compostela, Spain INFN, Sezione di Napoli, Italy Gran Sasso Science Institute (INFN), L'Aquila, Italy Department of Physics and Astronomy, Lehman College, City University of New York, United States Universidad Complutense de Madrid, Spain Physics Department, University of Bucharest, Romania Universidad Industrial de Santander, Colombia Observatorio Pierre Auger, Argentina Observatorio Pierre Auger and Comisión Nacional de Energía Atómica, Argentina University Politehnica of Bucharest, Romania Horia Hulubei National Institute for Physics and Nuclear Engineering, Romania Karlsruhe Institute of Technology, Institut für Experimentelle Kernphysik (IEKP), Germany Ohio State University, United States Department of Physics, Bergische Universität Wuppertal, Germany University of Adelaide, Australia Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, France Università Torino, Dipartimento di Fisica, Italy Max-Planck-Institut für Radioastronomie, Bonn, Germany Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris 11, CNRS-IN2P3, France Institute of Physics (FZU), Academy of Sciences of the Czech Republic, Czech Republic Dipartimento di Matematica e Fisica E. de Giorgi, Università Del Salento, Italy INFN, Sezione di Lecce, Italy INFN Laboratori Nazionali Del Gran Sasso, Italy Deutsches Elektronen-Synchrotron (DESY), Zeuthen, Germany Instituto de Física, Universidade Federal Do Rio de Janeiro (UFRJ), Brazil Institute of Nuclear Physics PAN, Poland Karlsruhe Institute of Technology, Institut für Kernphysik (IKP), Germany Colorado State University, United States III. Physikalisches Institut A, RWTH Aachen University, Germany Universidad de Granada and C.A.F.P.E., Spain Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud Universiteit, Nijmegen, Netherlands Dipartimento di Fisica e Astronomia, Università di Catania, Italy INFN, Sezione di Catania, Italy Universidad Autónoma de Chiapas, Mexico Institute of Space Science, Romania Universidad Michoacana de San Nicolás de Hidalgo, Mexico Universidade Estadual de Campinas (UNICAMP), Brazil Dipartimento di Fisica ettore Pancini, Università di Napoli, Federico II, Italy Pennsylvania State University, United States Case Western Reserve University, United States University of Chicago, United States Dipartimento di Ingegneria, Università Del Salento, Italy Instituto de Astronomía y Física Del Espacio (IAFE CONICET-UBA), Argentina Departamento de Fisica and Departamento de Ciencias de la Atmosfera y Los Oceanos, FCEyN, Universidad de Buenos Aires, Argentina Universidade Federal Fluminense, Brazil Nationaal Instituut voor Kernfysica en Hoge Energie Fysica (NIKHEF), Netherlands School of Physics and Astronomy, University of Leeds, Leeds, United Kingdom Inst. de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil Dipartimento di Fisica, Università di Roma, Tor Vergata, Italy INFN, Sezione di Roma, Tor Vergata, Italy Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, Italy INFN, Gruppo Collegato dell'Aquila, Italy Universidade Federal Do Paraná, Setor Palotina, Brazil IFLP, Universidad Nacional de la Plata, CONICET, Argentina II. Institut für Theoretische Physik, Universität Hamburg, Germany Fermi National Accelerator Laboratory, United States Stichting Astronomisch Onderzoek in Nederland (ASTRON), Dwingeloo, Netherlands New York University, United States Michigan Technological University, United States Experimental Particle Physics Department, J. Stefan Institute, Slovenia Laboratory for Astroparticle Physics, University of Nova Gorica, Slovenia Instituto de Física de Rosario (IFIR), CONICET/U.N.R., Facultad de Ciencias Bioquímicas y Farmacéuticas U.N.R., Argentina Facultad Regional Mendoza (CONICET/CNEA), Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Universidad Tecnológica Nacional, Argentina Karlsruhe Institute of Technology, Institut für Prozessdatenverarbeitung und Elektronik (IPE), Germany INFN, Sezione di Milano, Italy Faculty of Astrophysics, University of Łódź, Poland Faculty of High-Energy Astrophysics, University of Łódź, Poland University of Hawaii, United States Universidade Estadual de Feira de Santana (UEFS), Brazil KVI, Center for Advanced Radiation Technology, University of Groningen, Netherlands Palacky University, RCPTM, Czech Republic Colorado School of Mines, United States RWTH Aachen University, Germany Universidade Federal Do ABC (UFABC), Brazil Benemérita Universidad Autónoma de Puebla (BUAP), Mexico Dipartimento di Fisica, Università di Milano, Italy Centro de Investigación y de Estudios Avanzados Del IPN (CINVESTAV), Mexico Louisiana State University, United States University of New Mexico, United States Universidade Federal de Pelotas, Brazil Institute of Particle and Nuclear Physics, University Prague, Czech Republic Centro de Investigaciones en Láseres y Aplicaciones, CITEDEF, CONICET, Argentina Northeastern University, United States U. Profesional Interdisciplinaria en Ing. y Tecnologias Avanzadas Del Instituto Politecnico Nacional, Mexico Dipartimento di Matematica e Fisica E. de Giorgi, INFN, Sezione di Lecce, Italy SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, France INFN, Sezione di Milano Bicocca, Italy Vrije Universiteit Brussels, Brussels, Belgium INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, Italy Centro Brasileiro de Pesquisas Fisicas (CBPF), Brazil University of Nebraska, United States Escola de Engenharia de Lorena, Universidade de São Paulo, Brazil |
Año: | 2016 |
Volumen: | 94 |
Número: | 8 |
DOI: | http://dx.doi.org/10.1103/PhysRevD.94.082002 |
Título revista: | Physical Review D |
Título revista abreviado: | Phy. Rev. D |
ISSN: | 24700010 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24700010_v94_n8_p_Multitudinario |