Observation of the suppression of the flux of cosmic rays above 4 x 10 (19) eV.

J, Abraham; P, Abreu; M, Aglietta; C, Aguirre; D, Allard; I, Allekotte; J, Allen; P, Allison; J, Alvarez-Muñiz; M, Ambrosio; L, Anchordoqui; S, Andringa; A, Anzalone; C, Aramo; S, Argirò; K, Arisaka; E, Armengaud; F, Arneodo; F, Arqueros; T, Asch; H, Asorey; P, Assis; BS, Atulugama; J, Aublin; M, Ave; G, Avila; T, Bäcker; D, Badagnani; AF, Barbosa; D, Barnhill; SL, Barroso; B, Baughman; P, Bauleo; JJ, Beatty; T, Beau; BR, Becker; KH, Becker; JA, Bellido; S, Benzvi; C, Berat; T, Bergmann; P, Bernardini; X, Bertou; PL, Biermann; P, Billoir; O, Blanch-Bigas; F, Blanco; P, Blasi; C, Bleve; H, Blümer; M, Bohácová; C, Bonifazi; R, Bonino; J, Brack; P, Brogueira; WC, Brown; P, Buchholz; A, Bueno; RE, Burton; NG, Busca; KS, Caballero-Mora; B, Cai; DV, Camin; L, Caramete; R, Caruso; W, Carvalho; A, Castellina; O, Catalano; G, Cataldi; L, Cazon; R, Cester; J, Chauvin; A, Chiavassa; JA, Chinellato; A, Chou; J, Chudoba; J, Chye; PD, Clark; RW, Clay; E, Colombo; R, Conceição; B, Connolly; F, Contreras; J, Coppens; A, Cordier; U, Cotti; S, Coutu; CE, Covault; A, Creusot; A, Criss; J, Cronin; A, Curutiu; S, Dagoret-Campagne; K, Daumiller; BR, Dawson; Almeida RM, de; Donato C, De; Jong SJ, de; La Vega G, De; WJ, Junior; JR, Neto; Mitri I, De; Souza V, de; Peral L, Del; O, Deligny; Selva A, Della; CD, Fratte; H, Dembinski; Giulio C, Di; JC, Diaz; PN, Diep; C, Dobrigkeit; JC, D'Olivo; PN, Dong; D, Dornic; A, Dorofeev; Anjos JC, Dos; MT, Dova; D, D'Urso; I, Dutan; MA, Duvernois; R, Engel; L, Epele; M, Erdmann; CO, Escobar; A, Etchegoyen; PF, Luis; H, Falcke; G, Farrar; AC, Fauth; N, Fazzini; F, Ferrer; A, Ferrero; B, Fick; A, Filevich; A, Filipcic; I, Fleck; CE, Fracchiolla; W, Fulgione; B, García; DG, Gámez; D, Garcia-Pinto; X, Garrido; H, Geenen; G, Gelmini; H, Gemmeke; PL, Ghia; M, Giller; H, Glass; MS, Gold; G, Golup; FG, Albarracin; MG, Berisso; P, Gonçalves; Amaral MG, do; D, Gonzalez; JG, Gonzalez; M, González; D, Góra; A, Gorgi; P, Gouffon; V, Grassi; AF, Grillo; C, Grunfeld; Y, Guardincerri; F, Guarino; GP, Guedes; J, Gutiérrez; JD, Hague; V, Halenka; JC, Hamilton; P, Hansen; D, Harari; S, Harmsma; JL, Harton; A, Haungs; T, Hauschildt; MD, Healy; T, Hebbeker; G, Hebrero; D, Heck; C, Hojvat; VC, Holmes; P, Homola; JR, Hörandel; A, Horneffer; M, Hrabovský; T, Huege; M, Hussain; M, Iarlori; A, Insolia; F, Ionita; A, Italiano; M, Kaducak; KH, Kampert; T, Karova; P, Kasper; B, Kégl; B, Keilhauer; E, Kemp

doi:10.1103/physrevlett.101.061101

Public

Observation of the suppression of the flux of cosmic rays above 4 x 10 (19) eV.

Shared by NobleBlocks on Aug 4, 2008 • 12:00 AM UTC

Authors:

Abraham J

Abreu P

Aglietta M

Abstract

The energy spectrum of cosmic rays above 2.5 x 10;{18} eV, derived from 20,000 events recorded at the Pierre Auger Observatory, is described. The spectral index gamma of the particle flux, J proportional, variantE;{-gamma}, at energies between 4 x 10;{18} eV and 4 x 10;{19} eV is 2.69+/-0.02(stat)+/...

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