Mass composition of ultrahigh-energy cosmic rays with the Telescope Array Surface Detector data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00502252" target="_blank" >RIV/68378271:_____/19:00502252 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/physrevd.99.022002" target="_blank" >https://doi.org/10.1103/physrevd.99.022002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.99.022002" target="_blank" >10.1103/PhysRevD.99.022002</a>
Alternative languages
Result language
angličtina
Original language name
Mass composition of ultrahigh-energy cosmic rays with the Telescope Array Surface Detector data
Original language description
The results on ultrahigh-energy cosmic rays (UHECR) mass composition obtained with the Telescope Array surface detector are presented. The analysis employs the Boosted Decision tree (BDT) multivariate analysis built upon 14 observables related to both the properties of the shower front and the lateral distribution function. The multivariate classifier is trained with Monte-Carlo sets of events induced by the primary protons and iron. An average atomic mass of UHECR is presented for energies 1018.0 – 1020.0 eV. The average atomic mass of primary particles shows no significant energy dependence and corresponds to ⟨ln A⟩ = 2.0 ± 0.1(stat.) ± 0.44(syst.). The result is compared to the mass composition obtained by the Telescope Array with Xmax technique along with the results of other experiments. Possible systematic errors of the method are discussed.n
Czech name
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Czech description
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Classification
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
Result continuities
Project
<a href="/en/project/EF15_003%2F0000437" target="_blank" >EF15_003/0000437: Cosmology, Gravity and the Dark Sector of the Universe</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
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Volume of the periodical
98
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000456800000002
EID of the result in the Scopus database
2-s2.0-85060842808