Ultra high energy cosmic rays and possible signature of black strings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00548069" target="_blank" >RIV/68378271:_____/16:00548069 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1475-7516/2016/03/014" target="_blank" >https://doi.org/10.1088/1475-7516/2016/03/014</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2016/03/014" target="_blank" >10.1088/1475-7516/2016/03/014</a>

Result language
angličtina
Original language name
Ultra high energy cosmic rays and possible signature of black strings
Original language description
Ultra high energy cosmic rays (UHECRs) probably originate in extreme conditions in which extra dimension effects might be important. In this paper we calculate the correction in black hole accretion mechanisms due to extra dimension effects in the static and rotating cases. A parametrization of the external Kerr horizons in both cases is presented and analysed. We use previous calculations of upper limits on the UHECR flux to set limits on the UHECR production efficiency of nine sources. The upper limit on the UHECR luminosity calculation is based on GeV-TeV gamma-ray measurements. The total luminosity due to the accretion mechanism is compared to the upper limit on UHECRs. The dependence of the UHECR production efficiency upper limit on black hole mass is also presented and discussed.
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

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

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