Publication
Measurement of the Cosmic Ray Spectrum above 4 $\times$ 10$^{18}$ eV Using Inclined Events Detected with the Pierre Auger Observatory
| dc.contributor.author | Pierre Auger collaboration (463 authors) | |
| dc.contributor.author | Abreu, Pedro | |
| dc.contributor.author | Andringa, Sofia | |
| dc.contributor.author | Assis, Pedro | |
| dc.contributor.author | Blanco, Alberto | |
| dc.contributor.author | Brogueira, Pedro | |
| dc.contributor.author | Cazon, Lorenzo | |
| dc.contributor.author | Conceição, Ruben | |
| dc.contributor.author | Diogo, Francisco | |
| dc.contributor.author | Espadanal, Joao | |
| dc.contributor.author | Lopes, Luis | |
| dc.contributor.author | Pimenta, Mário | |
| dc.contributor.author | Santos, Eva | |
| dc.contributor.author | Sarmento, Raul | |
| dc.contributor.author | Tomé, Bernardo | |
| dc.date.accessioned | 2019-02-04T06:25:46Z | |
| dc.date.available | 2019-02-04T06:25:46Z | |
| dc.date.issued | 2015-08-26 | |
| dc.date.updated | 2019-02-04T06:25:46Z | |
| dc.description.abstract | A measurement of the cosmic-ray spectrum for energies exceeding 4×10(18) eV is presented, which is based on the analysis of showers with zenith angles greater than 60° detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above 5.3×10(18) eV, the ``ankle'', the flux can be described by a power law E(−)(γ) with index γ=2.70 ± 0.02 (stat) ± 0.1 (sys) followed by a smooth suppression region. For the energy (E(s)) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find E(s)=(5.12±0.25 (stat)(+1.0)(−)(1.2) (sys))×10(19) eV. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | JCAP 1508 (2015) 049; DOI 10.1088/1475-7516/2015/08/049 | |
| dc.identifier.uri | http://dx.doi.org/10.1088/1475-7516/2015/08/049 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26809 | |
| dc.language.iso | eng | |
| dc.title | Measurement of the Cosmic Ray Spectrum above 4 $\times$ 10$^{18}$ eV Using Inclined Events Detected with the Pierre Auger Observatory | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |