• DOI:10.1088/0004-637X/760/2/148
• Corpus ID: 119270495

A Search for Point Sources of EeV Neutrons

@inproceedings{Collaboration2012ASF,
  title={A Search for Point Sources of EeV Neutrons},
  author={The Pierre Auger Collaboration},
  year={2012}
}

• The Pierre Auger Collaboration
• Published 20 November 2012
• Biology

A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The search covers from −90◦ to +15◦ in declination using four different energy ranges above 1 EeV (10 eV). The method used in this search is more sensitive to neutrons than to photons. The upper limit on a neutron flux is derived for a dense grid of directions for each of the four energy ranges. These results constrain scenarios for the production of ultra-high energy cosmic rays in the Galaxy. Subject headings: Pierre Auger Observatory; high-energy neutron sources; neutron flux limits www.auger.org.ar; www.auger.org Pierre Auger Collaboration, Av. San Mart́ın Norte 306, 5613 Malargüe, Mendoza, Argentina ar X iv :1 21 1. 49 01 v1 [ as tr oph .H E ] 2 0 N ov 2 01 2 The Pierre Auger Collaboration P. Abreu63, M. Aglietta51, M. Ahlers94, E.J. Ahn81, I.F.M. Albuquerque15, D. Allard29, I. Allekotte1, J. Allen85, P. Allison87, A. Almela11, 7, J. Alvarez Castillo56, J. Alvarez-Muñiz73, R. Alves Batista16, M. Ambrosio45, A. Aminaei57, L. Anchordoqui95, S. Andringa63, T. Antiči’c23, C. Aramo45, E. Arganda4, 70, F. Arqueros70, H. Asorey1, P. Assis63, J. Aublin31, M. Ave37, M. Avenier32, G. Avila10, A.M. Badescu66, M. Balzer36, K.B. Barber12, A.F. Barbosa13 ‡, R. Bardenet30, S.L.C. Barroso18, B. Baughman87 f , J. Bäuml35, C. Baus37, J.J. Beatty87, K.H. Becker34, A. Bellétoile33, J.A. Bellido12, S. BenZvi94, C. Berat32, X. Bertou1, P.L. Biermann38, P. Billoir31, F. Blanco70, M. Blanco31, 71, C. Bleve34, H. Blümer37, 35, M. Boháčová25, D. Boncioli46, C. Bonifazi21, 31, R. Bonino51, N. Borodai61, J. Brack79, I. Brancus64, P. Brogueira63, W.C. Brown80, R. Bruijn75 i, P. Buchholz41, A. Bueno72, L. Buroker95, R.E. Burton77, K.S. Caballero-Mora88, B. Caccianiga44, L. Caramete38, R. Caruso47, A. Castellina51, O. Catalano50, G. Cataldi49, L. Cazon63, R. Cester48, J. Chauvin32, S.H. Cheng88, A. Chiavassa51, J.A. Chinellato16, J. Chirinos Diaz84, J. Chudoba25, M. Cilmo45, R.W. Clay12, G. Cocciolo49, L. Collica44, M.R. Coluccia49, R. Conceição63, F. Contreras9, H. Cook75, M.J. Cooper12, J. Coppens57, 59, A. Cordier30, S. Coutu88, C.E. Covault77, A. Creusot29, A. Criss88, J. Cronin90, A. Curutiu38, S. Dagoret-Campagne30, R. Dallier33, B. Daniel16, S. Dasso5, 3, K. Daumiller35, B.R. Dawson12, R.M. de Almeida22, M. De Domenico47, C. De Donato56, S.J. de Jong57, 59, G. De La Vega8, W.J.M. de Mello Junior16, J.R.T. de Mello Neto21, I. De Mitri49, V. de Souza14, K.D. de Vries58, L. del Peral71, M. del Ŕıo46, 9, O. Deligny28, H. Dembinski37, N. Dhital84, C. Di Giulio46, 43, M.L. Dı́az Castro13, P.N. Diep96, F. Diogo63, C. Dobrigkeit 16, W. Docters58, J.C. D’Olivo56, P.N. Dong96, 28, A. Dorofeev79, J.C. dos Anjos13, M.T. Dova4, D. D’Urso45, I. Dutan38, J. Ebr25, R. Engel35, M. Erdmann39, C.O. Escobar81, 16, J. Espadanal63, A. Etchegoyen7, 11, P. Facal San Luis90, H. Falcke57, 60, 59, G. Farrar85, A.C. Fauth16, N. Fazzini81, A.P. Ferguson77, B. Fick84, J.M. Figueira7, A. Filevich7, A. Filipčič67, 68, S. Fliescher39, C.E. Fracchiolla79, E.D. Fraenkel58, O. Fratu66, U. Fröhlich41, B. Fuchs37, R. Gaior31, R.F. Gamarra7, S. Gambetta42, B. Garćıa8, S.T. Garcia Roca73, D. Garcia-Gamez30, D. Garcia-Pinto70, A. Gascon Bravo72, H. Gemmeke36, P.L. Ghia31, M. Giller62, J. Gitto8, H. Glass81, M.S. Gold93, G. Golup1, F. Gomez Albarracin4, M. Gómez Berisso1, P.F. Gómez Vitale10, P. Gonçalves63, J.G. Gonzalez35, B. Gookin79, A. Gorgi51, P. Gouffon15, E. Grashorn87, S. Grebe57, 59, N. Griffith87, M. Grigat39, A.F. Grillo52, Y. Guardincerri3, F. Guarino45, G.P. Guedes17, P. Hansen4, D. Harari1, T.A. Harrison12, J.L. Harton79, A. Haungs35, T. Hebbeker39, D. Heck35, A.E. Herve12, C. Hojvat81, N. Hollon90, V.C. Holmes12, P. Homola61, J.R. Hörandel57, 59, P. Horvath26, M. Hrabovský26, 25, D. Huber37, T. Huege35, A. Insolia47, F. Ionita90, A. Italiano47, S. Jansen57, 59, C. Jarne4, S. Jiraskova57, M. Josebachuili7, K. Kadija23, K.H. Kampert34, P. Karhan24, P. Kasper81, I. Katkov37, B. Kégl30, B. Keilhauer35, A. Keivani83, J.L. Kelley57, E. Kemp16, R.M. Kieckhafer84, H.O. Klages35, M. Kleifges36, J. Kleinfeller9, 35, J. Knapp75, D.-H. Koang32, K. Kotera90, N. Krohm34, O. Krömer36, D. Kruppke-Hansen34, D. Kuempel39, 41, J.K. Kulbartz40, N. Kunka36, G. La Rosa50, C. Lachaud29, D. LaHurd77, L. Latronico51, R. Lauer93, P. Lautridou33, S. Le Coz32, M.S.A.B. Leão20, D. Lebrun32, P. Lebrun81, M.A. Leigui de Oliveira20, A. Letessier-Selvon31, I. Lhenry-Yvon28, K. Link37, R. López53, A. Lopez Agüera73, K. Louedec32, 30, J. Lozano Bahilo72, L. Lu75, A. Lucero7, M. Ludwig37, H. Lyberis21, 28, M.C. Maccarone50, C. Macolino31, S. Maldera51, J. Maller33, D. Mandat25, P. Mantsch81, A.G. Mariazzi4, J. Marin9, 51, V. Marin33, I.C. Maris31, H.R. Marquez Falcon55, G. Marsella49, D. Martello49, L. Martin33, H. Martinez54, O. Mart́ınez Bravo53, D. Martraire28, J.J. Maśıas Meza3, H.J. Mathes35, J. Matthews83, 89,