Event rates of UHE photons cascading in the geomagnetic field at CTA-North

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F22%3AA0000247" target="_blank" >RIV/47813059:19630/22:A0000247 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21670/22:00373868
Result on the web
<a href="https://pos.sissa.it/395/726" target="_blank" >https://pos.sissa.it/395/726</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.395.0726" target="_blank" >10.22323/1.395.0726</a>

Result language
angličtina
Original language name
Event rates of UHE photons cascading in the geomagnetic field at CTA-North
Original language description
Photons in the EeV range and beyond are expected from top-down models of UHECR production and from the GZK effect. As they reach the Earth, they have a non-zero probability of converting into an electron/positron pair in the geomagnetic field and of producing an electromagnetic shower above the atmosphere. In this work, we present a new method to search for cascading UHE photons with gamma-ray telescopes based on Monte-Carlo simulations and multivariate analyses. Considering the future CTA-North experiment in La Palma, Spain, we show that such a method provides an efficient cosmic-ray background rejection with little loss of cascading UHE photon events. We also estimate that if gamma-ray bursts photon emission extends to the EeV regime, the number of expected events in 30 hours of observation time can go up to 0.17.
Czech name
—
Czech description
—

Project
<a href="/en/project/EF16_019%2F0000766" target="_blank" >EF16_019/0000766: Engineering applications of microworld physics</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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