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

D 2022

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

CHEMINANT, Kevin Almeida, Dariusz GÓRA, David E. Alvarez CASTILLO, Nikolay BUDNEV, Alok C. GUPTA et. al.

Základní údaje

Originální název

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

Autoři

Vydání

Itálie, Proceedings of Science, od s. "726-1"-"726-9", 9 s. 2022

Nakladatel

Sissa Medialab Srl

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10308 Astronomy

Stát vydavatele

Itálie

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

elektronická verze "online"

Odkazy

URL

Kód RIV

RIV/47813059:19630/22:A0000247

Organizační jednotka

Fyzikální ústav v Opavě

ISSN

DOI

http://dx.doi.org/10.22323/1.395.0726

Klíčová slova anglicky

Cosmic rays; Cosmology; Earth atmosphere; Gamma rays; Geomagnetism; Intelligent systems; Monte Carlo methods; Multivariant analysis;Cosmic Ray Background; Electro-magnetic showers; Electron-positron pairs; Photons

Štítky

FÚ, RIV23

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 15. 2. 2023 15:30, Mgr. Pavlína Jalůvková

Anotace

V originále

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.

Citovat

CHEMINANT, Kevin Almeida, Dariusz GÓRA, David E. Alvarez CASTILLO, Nikolay BUDNEV, Alok C. GUPTA, Piotr HOMOLA, Bartosz ŁOZOWSKI, Mikhail V. MEDVEDEV, Alona MOZGOVA, Maciej PAWLIK, Krzysztof RZECKI, Karel SMOLEK, Jaroslaw STASIELAK, Oleksandr SUSHCHOV, Arman TURSUNOV, Tadeusz WIBIG a Jilberto ZAMORA-SAA. Event rates of UHE photons cascading in the geomagnetic field at CTA-North. Online. In Proceedings of Science. Itálie: Sissa Medialab Srl, 2022, s. "726-1"-"726-9", 9 s. ISSN 1824-8039. Dostupné z: https://dx.doi.org/10.22323/1.395.0726.

@inproceedings{66686,
   author = {Cheminant, Kevin Almeida and Góra, Dariusz and Castillo, David E. Alvarez and Budnev, Nikolay and Gupta, Alok C. and Homola, Piotr and Łozowski, Bartosz and Medvedev, Mikhail V. and Mozgova, Alona and Pawlik, Maciej and Rzecki, Krzysztof and Smolek, Karel and Stasielak, Jaroslaw and Sushchov, Oleksandr and Tursunov, Arman and Wibig, Tadeusz and ZamoraandSaa, Jilberto},
   address = {Itálie},
   booktitle = {Proceedings of Science},
   doi = {http://dx.doi.org/10.22323/1.395.0726},
   keywords = {Cosmic rays; Cosmology; Earth atmosphere; Gamma rays; Geomagnetism; Intelligent systems; Monte Carlo methods; Multivariant analysis;Cosmic Ray Background; Electro-magnetic showers; Electron-positron pairs; Photons},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Itálie},
   pages = {"726-1"-"726-9"},
   publisher = {Sissa Medialab Srl},
   title = {Event rates of UHE photons cascading in the geomagnetic field at CTA-North},
   url = {https://pos.sissa.it/395/726},
   year = {2022}
}

TY  - JOUR
ID  - 66686
AU  - Cheminant, Kevin Almeida - Góra, Dariusz - Castillo, David E. Alvarez - Budnev, Nikolay - Gupta, Alok C. - Homola, Piotr - Łozowski, Bartosz - Medvedev, Mikhail V. - Mozgova, Alona - Pawlik, Maciej - Rzecki, Krzysztof - Smolek, Karel - Stasielak, Jaroslaw - Sushchov, Oleksandr - Tursunov, Arman - Wibig, Tadeusz - Zamora-Saa, Jilberto
PY  - 2022
TI  - Event rates of UHE photons cascading in the geomagnetic field at CTA-North
PB  - Sissa Medialab Srl
CY  - Itálie
KW  - Cosmic rays
KW  - Cosmology
KW  - Earth atmosphere
KW  - Gamma rays
KW  - Geomagnetism
KW  - Intelligent systems
KW  - Monte Carlo methods
KW  - Multivariant analysis;Cosmic Ray Background
KW  - Electro-magnetic showers
KW  - Electron-positron pairs
KW  - Photons
UR  - https://pos.sissa.it/395/726
N2  - 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.
ER  -

CHEMINANT, Kevin Almeida, Dariusz GÓRA, David E. Alvarez CASTILLO, Nikolay BUDNEV, Alok C. GUPTA, Piotr HOMOLA, Bartosz ŁOZOWSKI, Mikhail V. MEDVEDEV, Alona MOZGOVA, Maciej PAWLIK, Krzysztof RZECKI, Karel SMOLEK, Jaroslaw STASIELAK, Oleksandr SUSHCHOV, Arman TURSUNOV, Tadeusz WIBIG a Jilberto ZAMORA-SAA. Event rates of UHE photons cascading in the geomagnetic field at CTA-North. Online. In \textit{Proceedings of Science}. Itálie: Sissa Medialab Srl, 2022, s.~''726-1''-''726-9'', 9 s. ISSN~1824-8039. Dostupné z: https://dx.doi.org/10.22323/1.395.0726.

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