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

被引：1

作者：

Elshoukrofy, A. Sh. M. ^{[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. ^{[4
]}

Karpov, N. I. ^{[1
]}

Kindin, V. V. ^{[3
]}

Kirilenko, P. S. ^{[7
]}

Kiryuhin, S. N. ^{[4
]}

Kozhin, V. A. ^{[1
]}

Kokoulin, R. P. ^{[3
]}

Kompaniets, K. G. ^{[3
]}

Korosteleva, E. E. ^{[1
]}

Kravchenko, E. A. ^{[7
,8
]}

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. ^{[8
]}

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
]}

机构：

[1] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia

[2] Damanhour Univ, Damanhour, Egypt

[3] Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Moscow 115409, Russia

[4] Irkutsk State Univ, Res Inst Appl Phys, Irkutsk 664020, Russia

[5] Joint Inst Nucl Res, Dubna 141980, Moscow Oblast, Russia

[6] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany

[7] Novosibirsk State Univ, Novosibirsk 630090, Russia

[8] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia

[9] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

[10] Univ Torino, Phys Dept, I-10125 Turin, Italy

[11] INFN, Natl Inst Nucl Phys, I-10125 Turin, Italy

[12] Altai State Univ, Barnaul 656049, Russia

[13] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[14] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[15] Inst Space Sci, Bucharest 050107, Romania

[16] Russian Acad Sci, Pushkov Inst Terr Magnetism Ionosphere & Radio Wa, Troitsk 108840, Moscow Oblast, Russia

来源：

PHYSICS OF ATOMIC NUCLEI | 2018年 / 81卷 / 09期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

cosmic rays; EAS; Cherenkov light; primary nuclei; chemical composition; GAMMA-RAY;

D O I：

10.1134/S1063778818090090

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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.

引用

页码：1294 / 1300

页数：7

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