作者
Jiju Abraham, P Abreu, Marco Aglietta, EJ Ahn, D Allard, I Allekotte, J Allen, J Alvarez-Muñiz, M Ambrosio, L Anchordoqui, S Andringa, T Antičić, Anna Anzalone, C Aramo, Ernesto Arganda, Katsushi Arisaka, Fernando Arqueros, Hernán Asorey, Pedro Assis, J Aublin, M Ave, G Avila, T Bäcker, D Badagnani, M Balzer, KB Barber, AF Barbosa, SLC Barroso, B Baughman, P Bauleo, JJ Beatty, BR Becker, KH Becker, A Bellétoile, JA Bellido, S BenZvi, C Berat, T Bergmann, X Bertou, PL Biermann, P Billoir, O Blanch-Bigas, F Blanco, M Blanco, Carla Bleve, H Blümer, M Boháčová, D Boncioli, C Bonifazi, Raffaella Bonino, N Borodai, J Brack, P Brogueira, WC Brown, R Bruijn, P Buchholz, A Bueno, RE Burton, NG Busca, KS Caballero-Mora, L Caramete, R Caruso, A Castellina, O Catalano, G Cataldi, L Cazon, R Cester, J Chauvin, A Chiavassa, JA Chinellato, A Chou, J Chudoba, RW Clay, E Colombo, MR Coluccia, R Conceicao, F Contreras, H Cook, MJ Cooper, J Coppens, A Cordier, U Cotti, S Coutu, CE Covault, A Creusot, A Criss, J Cronin, A Curutiu, S Dagoret-Campagne, R Dallier, K Daumiller, BR Dawson, RM de Almeida, M De Domenico, C De Donato, SJ de Jong, G De La Vega, WJM de Mello Junior, JRT de Mello Neto, I De Mitri, V de Souza, KD de Vries, G Decerprit, L del Peral, O Deligny, A Della Selva, C Delle Fratte, H Dembinski, C Di Giulio, JC Diaz, ML Díaz Castro, PN Diep, C Dobrigkeit, JC D’Olivo, PN Dong, A Dorofeev, JC dos Anjos, MT Dova, D D’Urso, I Dutan, MA DuVernois, J Ebr, R Engel, M Erdmann, CO Escobar, A Etchegoyen, P Facal San Luis, H Falcke, G Farrar, AC Fauth, N Fazzini, A Ferrero, B Fick, A Filevich, A Filipčič, I Fleck, S Fliescher, CE Fracchiolla, ED Fraenkel, U Froehlich, W Fulgione, RF Gamarra, S Gambetta, B Garcia, D García Gámez, D Garcia-Pinto, X Garrido, G Gelmini, H Gemmeke, PL Ghia
发表日期
2010/1/21
期刊
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
卷号
613
期号
1
页码范围
29-39
出版商
North-Holland
简介
The surface detector array of the Pierre Auger Observatory consists of 1600 water-Cherenkov detectors, for the study of extensive air showers (EAS) generated by ultra-high-energy cosmic rays. We describe the trigger hierarchy, from the identification of candidate showers at the level of a single detector, amongst a large background (mainly random single cosmic ray muons), up to the selection of real events and the rejection of random coincidences. Such trigger makes the surface detector array fully efficient for the detection of EAS with energy above 3×1018eV, for all zenith angles between 0∘ and 60∘, independently of the position of the impact point and of the mass of the primary particle. In these range of energies and angles, the exposure of the surface array can be determined purely on the basis of the geometrical acceptance.
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