Features of the energy spectrum of cosmic rays above 2.5 × 1018 eV using the Pierre Auger Observatory

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00535287" target="_blank" >RIV/68378271:_____/20:00535287 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0313356" target="_blank" >http://hdl.handle.net/11104/0313356</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.125.121106" target="_blank" >10.1103/PhysRevLett.125.121106</a>

Result language
angličtina
Original language name
Features of the energy spectrum of cosmic rays above 2.5 × 1018 eV using the Pierre Auger Observatory
Original language description
We report a measurement of the energy spectrum of cosmic rays above 2.5 x 10(18) eV based on 215 030 events. New results are presented: at about 1.3 x 10(19) eV, the spectral index changes from 2.51 +/- 0.03(stat) +/- 0.05(syst) to 3.05 +/- 0.05(stat) +/- 0.10(syst), evolving to 5.1 +/- 0.3(stat) +/- 0.1(syst) beyond 5 x 10(19) eV, while no significant dependence of spectral features on the declination is seen in the accessible range. These features of the spectrum can be reproduced in models with energy-dependent mass composition. The energy density in cosmic rays above 5 x 10(18) eV is [5.66 +/- 0.03(stat) +/- 1.40(syst)] x 10(53) erg Mpc(-3).n
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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