Observation of Vavilov-Cherenkov radiation and EAS charged particles at large zenith angles

Beisembaev, R. U.; Vavilov, Yu. N.; Vildanova, Marina; Vildanov, N. G.; Zhukov, V. V.; Круглов, А. В.; Nam, R.A.; Pavlyuchenko, V. P.; Ryabov, V. A.; Stepanov, A. V.; Takibaev, Zh.S.; Yakovlev, V. I.

doi:10.3103/s1062873811030117

Cited by 3 publications

(2 citation statements)

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“…At investigation of D-EAS with Tien-Shan array of Vavilov-Cherenkov radiation triple EAS's were detected [21] when observing under zenith angle θ=70 o to vertical. Example of triple EAS is shown in fig.…”

Section: On the Possible Nature Of D-eas And Aligned Eventsmentioning

confidence: 99%

On the possible common nature of double extensive air showers and aligned events

Yakovlev

2012

Phys. Atom. Nuclei

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Section: On the Possible Nature Of D-eas And Aligned Eventsmentioning

confidence: 99%

On the possible common nature of double extensive air showers and aligned events

Yakovlev

2012

Phys. Atom. Nuclei

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“…The first results of the Horizon-T have been published in [4] and [5] with another publication being prepared currently.…”

Section: Introductionmentioning

confidence: 99%

Horizon-T Extensive Air Showers detector system operations and performance

Beznosko¹,

Batyrkhanov

Duspayev³

et al. 2017

Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016)

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"Horizon-T" is an innovative detector system located at Tien Shan high-altitude Science Station (TSHASS) at approximately 3340 meters above the sea level. It consists of eight detection points separated by the distance up to one kilometer that can measure time characteristics of the Extensive Air Showers (EAS) and record signal shapes with time resolution of ~10 ns. It was constructed to register EAS in the energy range above 10 16 eV coming from a wide range of zenith angles (0 o -85 o ). The system includes both the plastic scintillator particle detectors as well as the Vavilov -Cerenkov radiation detectors subsystem to observe the Cerenkov light from the EAS in the atmosphere directly. The time resolution and signal shape analysis capabilities of the detection points are used to study EAS development in the atmosphere.The development of the EAS is a process that can be studied both spatially and temporally. For the spatial part, a distributed network of detection points is required. For the time part, a signal shape must be recorded and analysed at each point with time resolution on the order of ~10 ns. In this paper, the current system description and performance level are described. Additionally, the latest data examples showing the unusual EAS examples above 10

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Strange Quark Matter and the Astrophysical Nature of Anomalous Effects in 1–100 PeV Cosmic Rays

Shaulov

Ryabov²,

Shepetov³

et al. 2022

Jetp Lett.

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The composition of cosmic rays is of decisive importance for the determination of reasons for change in the slope of the spectra of extensive air showers (knee) at energies of 1–100 PeV. The characteristics of the extensive air showers, where the highest energy secondary hadrons are concentrated, have been analyzed. Some anomalous effects such as an increase in the absorption length of hadron showers, scaling violation in the spectra of secondary hadrons, an excess of muons in extensive air showers with gamma-ray families, the appearance of the halos, and the alignment of energy centers along a straight line are observed in X-ray emulsion chambers in the knee region. At the same energies equivalent to 1–100 PeV in the laboratory system, LHC and RHIC data demonstrate a scaling behavior of the hadron spectrum, which means that new nuclear processes are absent. These data imply that anomalies observed in cosmic rays are due to astrophysical reasons, i.e., changes in the composition of cosmic rays. The analysis of the data on the EAS cores suggests that the knee in their spectrum is formed by a nonnuclear component of cosmic rays, possibly consisting of particles of strange quark matter.

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Observation of Vavilov-Cherenkov radiation and EAS charged particles at large zenith angles

Cited by 3 publications

References 1 publication

On the possible common nature of double extensive air showers and aligned events

On the possible common nature of double extensive air showers and aligned events

Horizon-T Extensive Air Showers detector system operations and performance

Strange Quark Matter and the Astrophysical Nature of Anomalous Effects in 1–100 PeV Cosmic Rays

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