Application of New Approximations of the Lateral Distribution of EAS Cherenkov Light in the Atmosphere

A. Sh. M. Elshoukrofy; E. B. Postnikov; I. I. Astapov; P. A. Bezyazeekov; V. Boreyko; A. N. Borodin; N. M. Budnev; R. Wischnewski; A. Y. Garmash; A. R. Gafarov; N. V. Gorbunov; V. M. Grebenyuk; O. A. Gress; T. I. Gress; A. A. Grinyuk; O. G. Grishin; A. N. Dyachok; A. V. Zagorodnikov; V. L. Zurbanov; A. L. Ivanova; Y. A. Kazarina; N. N. Kalmykov; N. I. Karpov; V. V. Kindin; P. S. Kirilenko; S. N. Kiryuhin; V. A. Kozhin; R. P. Kokoulin; K. G. Kompaniets; E. E. Korosteleva; E. A. Kravchenko; L. A. Kuzmichev; M. Kunnas; A. Chiavassa; A. A. Lagutin; V. V. Lenok; B. K. Lubsandorzhiev; N. B. Lubsandorzhiev; R. R. Mirgazov; R. Mirzoyan; R. D. Monkhoev; H. A. Motaweh; R. Nachtigall; E. A. Osipova; M. I. Panasyuk; L. V. Pankov; A. L. Pakhorukov; A. A. Petrukhin; V. A. Poleschuk; M. Popesku; E. G. Popova; A. Porelli; V. V. Prosin; V. S. Ptuskin; A. A. Pushnin; R. I. Raikin; G. I. Rubtsov; Ya. I. Sagan; V. S. Samoliga; L. G. Sveshnikova; Yu. A. Semeney; A. Y. Sidorenkov; A. A. Silaev; A. A. Silaev; A. V. Skurikhin; M. Slunecka; A. V. Sokolov; V. P. Sulakov; V. A. Tabolenko; B. A. Tarashansky; L. G. Tkachev; A. V. Tkachenko; M. Tluczykont; O. L. Fedorov; D. Horns; C. Spiering; I. I. Yashin

doi:10.1134/S1063778818090090

Application of New Approximations of the Lateral Distribution of EAS Cherenkov Light in the Atmosphere

Autores: Elshoukrofy A.S.¹^,2, Postnikov E.B.¹, Astapov I.I.³, Bezyazeekov P.A.⁴, Boreyko V.⁵, Borodin A.N.⁵, Budnev N.M.⁴, Wischnewski R.⁶, Garmash A.Y.⁷^,8, Gafarov A.R.⁴, Gorbunov N.V.⁵, Grebenyuk V.M.⁵, Gress O.A.⁴, Gress T.I.⁴, Grinyuk A.A.⁵, Grishin O.G.⁴, Dyachok A.N.⁴, Zagorodnikov A.V.⁴, Zurbanov V.L.⁴, Ivanova A.L.⁴, Kazarina Y.A.⁴, Kalmykov N.N.¹, Karpov N.I.¹, Kindin V.V.³, Kirilenko P.S.⁸, Kiryuhin S.N.⁴, Kozhin V.A.¹, Kokoulin R.P.³, Kompaniets K.G.³, Korosteleva E.E.¹, Kravchenko E.A.⁸^,9, Kuzmichev L.A.¹^,4, Kunnas M.⁹, Chiavassa A.¹⁰^,11, Lagutin A.A.¹², Lenok V.V.⁴, Lubsandorzhiev B.K.¹³, Lubsandorzhiev N.B.¹, Mirgazov R.R.⁴, Mirzoyan R.¹⁴, Monkhoev R.D.⁴, Motaweh H.A.², Nachtigall R.⁹, Osipova E.A.¹, Panasyuk M.I.¹, Pankov L.V.⁴, Pakhorukov A.L.⁴, Petrukhin A.A.³, Poleschuk V.A.⁴, Popesku M.¹⁵, Popova E.G.¹, Porelli A.⁶, Prosin V.V.¹, Ptuskin V.S.¹⁶, Pushnin A.A.⁴, Raikin R.I.¹², Rubtsov G.I.¹³, Sagan Y.I.⁵, Samoliga V.S.⁴, Sveshnikova L.G.¹, Semeney Y.A.⁴, Sidorenkov A.Y.¹³, Silaev A.A.¹, Silaev A.A.¹, Skurikhin A.V.¹, Slunecka M.⁵, Sokolov A.V.⁷^,8, Sulakov V.P.¹, Tabolenko V.A.⁴, Tarashansky B.A.⁴, Tkachev L.G.⁵, Tkachenko A.V.⁵, Tluczykont M.⁹, Fedorov O.L.⁴, Horns D.⁹, Spiering C.⁶, Yashin I.I.³
Afiliações:
1. Skobeltsyn Institute of Nuclear Physics
2. Damanhour University
3. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
4. Research Institute of Applied Physics
5. Joint Institute for Nuclear Research
6. Deutsches Elektronen-Synchrotron DESY
7. Novosibirsk State University
8. Budker Institute of Nuclear Physics, Siberian Branch
9. Institut für Experimentalphysik
10. Physics Department
11. National Institute of Nuclear Physics INFN
12. Altai State University
13. Institute for Nuclear Research
14. Max Planck Institute for Physics
15. Institute of Space Science
16. Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation
Edição: Volume 81, Nº 9 (2018)
Páginas: 1294-1300
Seção: Mathematical Modeling in Nuclear Technologies
URL: https://journal-vniispk.ru/1063-7788/article/view/193839
DOI: https://doi.org/10.1134/S1063778818090090
ID: 193839

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A new knee-like approximation of the lateral distribution function (LDF) of EAS Cherenkov light in the 30–3000 TeV energy range was proposed and tested with simulated showers in our earlier studies. This approximation fits the LDFs of individual showers accurately for all types of primary particles gamma-rays, protons, and nuclei) and is suitable for reconstructing the shower core, determining the energy, and separating gamma-induced showers from hadron-induced ones. In the present study, the knee-like fitting function is used to determine the parameters of real showers detected by TAIGA-HiSCORE. It is demonstrated that this approximation characterizes properly all types of individual LDFs of experimental events in the 300–1000 TeV range. The accuracy of fit is governed by fluctuations intrinsic to the process of measurement of the Cherenkov photon density. The probability density function of these fluctuations was reconstructed and introduced into simulations. Certain useful methodical applications of the knee-like approximation are con-sidered, and the possibility of shower sorting into nuclei groups is examined. The extensive statistical coverage and detailed LDF measurement data of HiSCORE have provided the first opportunity to examine in depth the LDF of Cherenkov radiation in the 300–1000 TeV range.

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cosmic rays, EAS, Cherenkov light, primary nuclei, chemical composition

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Application of New Approximations of the Lateral Distribution of EAS Cherenkov Light in the Atmosphere

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