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arXiv · 1310.4620

Highlights from the Pierre Auger Observatory

Antoine Letessier-Selvon·A. Aab·P. Abreu·M. Aglietta·M. Ahlers·E. J. Ahn·I. F. M. Albuquerque·I. Allekotte·J. Allen·P. Allison·A. Almela·J. Alvarez Castillo·J. Alvarez-Muniz·R. Alves Batista·M. Ambrosio·A. Aminaei·L. Anchordoqui·S. Andringa·T. Antivcic·C. Aramo·F. Arqueros·H. Asorey·P. Assis·J. Aublin·M. Ave·M. Avenier·G. Avila·A. M. Badescu·K. B. Barber·R. Bardenet·J. Baeuml·C. Baus·J. J. Beatty·K. H. Becker·A. Belletoile·J. A. Bellido·S. BenZvi·C. Berat·X. Bertou·P. L. Biermann·P. Billoir·F. Blanco·M. Blanco·C. Bleve·H. Blumer·M. Bohacova·D. Boncioli·C. Bonifazi·R. Bonino·N. Borodai·J. Brack·I. Brancus·P. Brogueira·W. C. Brown·P. Buchholz·A. Bueno·R. E. Burton·M. Buscemi·K. S. Caballero-Mora·B. Caccianiga·L. Caccianiga·M. Candusso·L. Caramete·R. Caruso·A. Castellina·G. Cataldi·L. Cazon·R. Cester·S. H. Cheng·A. Chiavassa·J. A. Chinellato·J. Chudoba·M. Cilmo·R. W. Clay·G. Cocciolo·R. Colalillo·L. Collica·M. R. Coluccia·R. Conceicao·F. Contreras·H. Cook·M. J. Cooper·S. Coutu·C. E. Covault·A. Criss·J. Cronin·A. Curutiu·R. Dallier·B. Daniel·S. Dasso·K. Daumiller·B. R. Dawson·R. M. de Almeida·M. De Domenico·S. J. de Jong·G. De La Vega·W. J. M. de Mello Junior·J. R. T. de Mello Neto·I. De Mitri·V. de Souza
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Abstract

The Pierre Auger Observatory is the world's largest cosmic ray observatory. Our current exposure reaches nearly 40,000 km$^2$ str and provides us with an unprecedented quality data set. The performance and stability of the detectors and their enhancements are described. Data analyses have led to a number of major breakthroughs. Among these we discuss the energy spectrum and the searches for large-scale anisotropies. We present analyses of our X$_{max}$ data and show how it can be interpreted in terms of mass composition. We also describe some new analyses that extract mass sensitive parameters from the 100% duty cycle SD data. A coherent interpretation of all these recent results opens new directions. The consequences regarding the cosmic ray composition and the properties of UHECR sources are briefly discussed.

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Antoine Letessier-Selvon, A. Aab, P. Abreu, M. Aglietta, M. Ahlers, E. J. Ahn, I. F. M. Albuquerque, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muniz, R. Alves Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antivcic, C. Aramo, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, A. M. Badescu, K. B. Barber, R. Bardenet, J. Baeuml, C. Baus, J. J. Beatty, K. H. Becker, A. Belletoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blumer, M. Bohacova, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancus, P. Brogueira, W. C. Brown, P. Buchholz, A. Bueno, R. E. Burton, M. Buscemi, K. S. Caballero-Mora, B. Caccianiga, L. Caccianiga, M. Candusso, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, S. H. Cheng, A. Chiavassa, J. A. Chinellato, J. Chudoba, M. Cilmo, R. W. Clay, G. Cocciolo, R. Colalillo, L. Collica, M. R. Coluccia, R. Conceicao, F. Contreras, H. Cook, M. J. Cooper, S. Coutu, C. E. Covault, A. Criss, J. Cronin, A. Curutiu, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, I. De Mitri, V. de Souza. 2013-10-17. Highlights from the Pierre Auger Observatory. https://doi.org/10.1007/s13538-014-0218-6

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