The Perspective Fundamental Cosmic Rays Physics and Astrophysics Investigations in the Tien Shan High-Mountain Scientific Station

Argynova, A.Kh.; Iskakov, B.A.; Jukov, V. V.; Mukashev, K. M.; Мурадов, А. Д.; Piskal, V.V.; Saduyev, N.; Sadykov, T. Kh.; Салихов, Н. М.; Serikkanov, Abay; Tautaev, E. M.; Umarov, F. F.

doi:10.32014/2019.2518-170x.163

Cited by 3 publications

(2 citation statements)

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“…В результате возник вопрос о поведении низкоэнергичной составляющей нейтронного потока (тепловых нейтронов), сопровождающего прохождение ШАЛ [4]. В соответствии с этим, на Тянь-Шаньской станции проводится эксперимент по детектированию тепловых нейтронов и связанного с ними потока низкоэнергичных гамма-квантов в центральной области ШАЛ [5][6][7]. Для регистрации нейтронов низкой энергии используется система специальных нейтронных детекторов на основе газоразрядных счетчиков 3 He, которые, в отличие от конфигурации нейтронного монитора, работают вне каких-либо слоев тяжелого вещества мишени и легкого замедлителя.…”

Section: Thematic Scope: Publication Of Priority Research In the Field Of Physical And Mathematicalunclassified

EFFICIENCY OF REGISTRATION OF LOW ENERGY NEUTRONS BY NEUTRON DETECTORS BASED ON GAS DISCHARGE 3He COUNTERS

Vildanova¹,

Novolodskaya²,

Sadykov³

et al. 2021

News of NAN RK. SGTS

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When analyzing the results obtained in measurements on neutron detectors with a low energy threshold, it is necessary to know the dependence of the neutron detection efficiency on their kinetic energy in information channels of various types, both for "open" neutron counters, and for counters surrounded by a moderator. Having a physical model of particle interactions based on the Geant4 package, it is possible to calculate the detection efficiency for various types of detectors, which are used in experiments conducted at the Tien Shan high-mountain station related to the registration of a neutron flux. The paper presents several simulation models developed for neutron detectors.

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Section: Thematic Scope: Publication Of Priority Research In the Field Of Physical And Mathematicalunclassified

EFFICIENCY OF REGISTRATION OF LOW ENERGY NEUTRONS BY NEUTRON DETECTORS BASED ON GAS DISCHARGE 3He COUNTERS

Vildanova¹,

Novolodskaya²,

Sadykov³

et al. 2021

News of NAN RK. SGTS

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“…In this context, the recent results of mathematical modeling of asymmetric interactions of light-heavy nuclei should be noted, where it was shown [19] that the cluster structure of an excited fireball can be formed, reflecting the alpha-cluster nature of the incident nucleus. Table 1 Type of interaction of nuclei In addition, these data can be used in other areas of high energy physics and cosmic ray physics [20][21].…”

Section: Pos(icrc2019)297mentioning

confidence: 99%

Features of Multi-Particle Processes on Light Nuclei in Target Experiments

Iskakov¹,

Argynova²,

Beisenova³

et al. 2020

Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)

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The system size problems are the important component of the multi-particle dynamics, which, however, is not sufficiently taken into account in the cosmic ray researches. Therefore, in addition to a broad and important program of new сollider and target experiments to study the interactions of protons with light nuclei, we propose to consider the features of multi-particle processes on light nuclei. In the work these problems are studied in the centrality selected interactions of light-(C, O, Ne)-(beam) and heavy-(Au, Pb)-(beam) ions with light-(C/N/O)-(target) and heavy-(Ag/Br)-(target) nuclei on the data of JINR-AGS-SPS target emulsion experiments with limited statistics. In order to reveal the possible system structure dependence, the analyses of E-by-E fluctuations on the longitudinal event shape and multiplicity are performed in two directions: on vertically,-for different (beam-target) pairs of nuclei under certain impact parameters, and on horizontally,-for the same (beam-target) pairs of nuclei on different impact parameters. The strong fluctuation enhancement for the central collisions of (C, O, Ne)-beam + (C/N/O)-target was interpreted as the sign of intrinsic virtual alpha-clustering in light nuclei.

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Studies of Anomalous Phenomena in the Development of Electron-Nuclear Cascades in the EAS Cores Registered by a Modernized Complex Installation at Mountain Altitudes

et al. 2023

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Phenomena have been observed in mountain high-energy cosmic-ray experiments, namely, a delayed absorption of high-energy cascades initiated by cosmic-ray hadrons in a lead absorber at E0≳ 1014 eV (so-called long-flying component), a coplanarity of most energetic particles in the central region of γ-ray−hadron superfamilies, and the so-called Tien Shan effect in EAS cores at E0≳ 1016 eV (s>5 TeV). These effects are not described by theoretical models. The coplanarity is explained by the process of coplanar generation of most energetic secondary particles in interactions of superhigh-energy hadrons with the nuclei of air atoms. The other two phenomena are possibly explained with a high cross section for fragmentation-region charmed-hadron generation. To investigate these phenomena, a cosmic-ray detector array, including a very thick ionization calorimeter, is being upgraded to study EAS cores.

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The Perspective Fundamental Cosmic Rays Physics and Astrophysics Investigations in the Tien Shan High-Mountain Scientific Station

Cited by 3 publications

References 0 publications

EFFICIENCY OF REGISTRATION OF LOW ENERGY NEUTRONS BY NEUTRON DETECTORS BASED ON GAS DISCHARGE 3He COUNTERS

EFFICIENCY OF REGISTRATION OF LOW ENERGY NEUTRONS BY NEUTRON DETECTORS BASED ON GAS DISCHARGE 3He COUNTERS

Features of Multi-Particle Processes on Light Nuclei in Target Experiments

Studies of Anomalous Phenomena in the Development of Electron-Nuclear Cascades in the EAS Cores Registered by a Modernized Complex Installation at Mountain Altitudes

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