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Maximum entropy analysis of cosmic ray composition
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SYSNO ASEP 0458916 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Maximum entropy analysis of cosmic ray composition Tvůrce(i) Nosek, D. (CZ)
Ebr, Jan (FZU-D) RID, ORCID
Vícha, Jakub (FZU-D) RID, ORCID
Trávníček, Petr (FZU-D) RID, ORCID
Nosková, J. (CZ)Zdroj.dok. Astroparticle Physics. - : Elsevier - ISSN 0927-6505
Roč. 76, Mar (2016), s. 9-18Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova ultra-high energy cosmic rays ; extensive air showers ; cosmic ray composition Vědní obor RIV BF - Elementární částice a fyzika vys. energií CEP GA14-17501S GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000370457000002 EID SCOPUS 84953329256 DOI 10.1016/j.astropartphys.2015.12.005 Anotace We focus on the primary composition of cosmic rays with the highest energies that cause extensive air showers in the Earth’s atmosphere. A way of examining the two lowest order moments of the sample distribution of the depth of shower maximum is presented. In order to describe how the moments of the depth of shower maximum depend on the type of primary particles and their energies, we utilize a superposition model. Using the principle of maximum entropy, we are able to determine what trends in the primary composition are consistent with the input data, while relying on a limited amount of information from shower physics. Some capabilities and limitations of the proposed method are discussed. In order to achieve a realistic description of the primary mass composition, we pay special attention to the choice of the parameters of the superposition model. We present two examples that demonstrate what consequences can be drawn for energy dependent changes in the primary composition. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2017
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