Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10335122" target="_blank" >RIV/00216208:11320/16:10335122 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/16:33159446 RIV/68378271:_____/16:00464049
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevD.93.072006" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.93.072006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.93.072006" target="_blank" >10.1103/PhysRevD.93.072006</a>

Result language
angličtina
Original language name
Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory
Original language description
The azimuthal asymmetry in the risetime of signals in Auger surface detector stations is a source of information on shower development. The azimuthal asymmetry is due to a combination of the longitudinal evolution of the shower and geometrical effects related to the angles of incidence of the particles into the detectors. The magnitude of the effect depends upon the zenith angle and state of development of the shower and thus provides a novel observable, (sec theta)(max), sensitive to the mass composition of cosmic rays above 3 x 10(18) eV. By comparing measurements with predictions from shower simulations, we find for both of our adopted models of hadronic physics (QGSJETII-04 and EPOS-LHC) an indication that the mean cosmic-ray mass increases slowly with energy, as has been inferred from other studies. However, the mass estimates are dependent on the shower model and on the range of distance from the shower core selected. Thus the method has uncovered further deficiencies in our understanding of shower modeling that must be resolved before the mass composition can be inferred from (sec theta)(max).
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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