Search for extensive photon cascades with the cosmic-ray extremely distributed observatory / P. Homola [et al.], D. Lemański, M. Michałek [et al.], P. Poznański, K. Smelcerz [et al.], M. Sułek [et ... więcej

Search for extensive photon cascades with the cosmic-ray extremely distributed observatory / P. Homola [et al.], D. Lemański, M. Michałek [et al.], P. Poznański, K. Smelcerz [et al.], M. Sułek [et al.] for the CREDO Collaboration // W: Proceedings of the PHOTON-2017 Conference : Geneva, Switzerland, 22-26 May 2017 [Dokument elektroniczny] / eds. by David d'Enterria, Albert de Roeck, Michelangelo Mangano. – Geneva : CERN, 2018. – (CERN Proceedings, ISSN 2078-8835 ; Vol. 1). – S. 289-296 : mapy, schem., wykr. – Tryb dostępu: https://e-publishing.cern.ch/index.php/CP/article/view/597/pdf. – Bibliogr. 24 poz., Abstr. – Autorzy wg informacji na publikacji: Full author list: http://credo.science/publications, bezpośredni dostęp do pliku: https://credo.science/wp-content/uploads/2018/04/cern-photon17-homola-credo170915-final-full-author-list.pdf. – doi: 10.23727/CERN-Proceedings-2018-001.289. – ISBN 978–92–9083–512–7 (paperback). – ISBN 978–92–9083–513–4 (PDF)

Although the photon structure is most efficiently studied at accelerators, there is also a scientifically complementary potential in investigations on photons produced in the outer space. This potential ... więcej

Although the photon structure is most efficiently studied at accelerators, there is also a scientifically complementary potential in investigations on photons produced in the outer space. This potential is already being explored with γ-ray telescopes, ultra-high energy cosmic ray observatories and, since very recently, by the Cosmic-Ray Extremely Distributed Observatory (CREDO). Unlike the former instruments focused on detection of single γ, CREDO aims at the detection of cascades (ensembles) of photons originating even at astrophysical distances. If at least a part of such a cascade reaches Earth, it might produce a unique pattern composed of a number of air showers observable by an appropriately dense array of standard detectors. If the energies of air showers constituting the pattern are relatively low and if the typical distances between neighbors are large, the ensemble character of the whole phenomenon might remain uncovered, unless the CREDO strategy is implemented.