| Home | [1–10] << 11 12 >> |
|
| Records | |||||
|---|---|---|---|---|---|
| Author | Pierre Auger Collaboration (Abreu, P. et al); Pastor, S. | ||||
| Title | Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory | Type | Journal Article | ||
| Year | 2011 | Publication | Physical Review D | Abbreviated Journal | |
| Volume | 84 | Issue | 12 | Pages | 122005 |
| Keywords | |||||
| Abstract | The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavors above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos can be distinguished from regular hadronic cosmic rays by the broad time structure of their shower signals in the water-Cherenkov detectors. In this paper we present for the first time an analysis based on down-going neutrinos. We describe the search procedure, the possible sources of background, the method to compute the exposure and the associated systematic uncertainties. No candidate neutrinos have been found in data collected from 1 January 2004 to 31 May 2010. Assuming an E(-2) differential energy spectrum the limit on the single-flavor neutrino is E(2)dN/dE < 1.74 x 10(-7)GeVcm(-2)s(-1)sr(-1) at 90% C.L. in the energy range 1 x 10(17) eV < E < 1 x 10(20)eV. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1550-7998 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000298667100001 | Approved | no | ||
| Is ISI | yes | International Collaboration | yes | ||
Call Number  |
IFIC @ elepoucu @ | Serial | 863 | ||
| Permanent link to this record | |||||
| Author | Pierre Auger Collaboration (Abreu, P. et al); Pastor, S. | ||||
| Title | The effect of the geomagnetic field on cosmic ray energy estimates and large scale anisotropy searches on data from the Pierre Auger Observatory | Type | Journal Article | ||
| Year | 2011 | Publication | Journal of Cosmology and Astroparticle Physics | Abbreviated Journal | J. Cosmol. Astropart. Phys. |
| Volume | 11 | Issue | 11 | Pages | 022 |
| Keywords | |||||
| Abstract | We present a comprehensive study of the influence of the geomagnetic field on the energy estimation of extensive air showers with a zenith angle smaller than 60 degrees, detected at the Pierre Auger Observatory. the geomagnetic field induces an azimuthal modulation of the estimated energy of cosmic rays up to the similar to 2% level at large zenith angles. We present a method to account for this modulation of the reconstructed energy. We analyse the effect of the modulation on large scale anisotropy searches in the arrival direction distributions of cosmic rays. At a given energy, the geomagnetic effect is shown to induce a pseudo-dipolar pattern at the percent level in the declination distribution that needs to be accounted for. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1475-7516 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000298141300022 | Approved | no | ||
| Is ISI | yes | International Collaboration | yes | ||
| Call Number |
IFIC @ elepoucu @ | Serial | 865 | ||
| Permanent link to this record | |||||