Zenith angle distribution of cosmic ray showers measured with the Yakutsk array and its application to the analysis of arrival directions in equatorial coordinates

Иванов, А. А.

doi:10.1103/physrevd.97.083003

Cited by 7 publications

(8 citation statements)

References 45 publications

(50 reference statements)

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“…With the use of proton and iron primary, which release very energetic gamma particles into Earth's atmosphere, this research intends to determine the lateral density of these charged particles. Experimental results from the Yakutsk EAS observatory corroborated this estimate at an energy level of 1019 eV [13,14].…”

Section: Introductionmentioning

confidence: 78%

The Simulation and Parametrization of the Lateral Distribution Function in Eas at Ultra High Energies

Raham,

Merza

2024

EJHEAA

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To characterize the features of EASs, this study used the AIRES simulation tool (Version 19.04.0) to estimate the lateral distribution function (LDF) at very high energies of different types of cosmic ray particles. An array of zenith angles spanning from 1018 to 1020 eV was used for the proton and iron primary simulations. The EASs's LDF curves are fitted with new coefficients for various primary particles and zenith angles using a polynomial fit, and these coefficients are applicable to the energy range described before. The findings of the simulation were compared with actual data from the Yakutsk EAS array, which showed decent agreement for proton and iron at 1019 eV for angled showers at θ=10ˢ.

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Section: Introductionmentioning

confidence: 78%

The Simulation and Parametrization of the Lateral Distribution Function in Eas at Ultra High Energies

Raham,

Merza

2024

EJHEAA

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“…At the same time the data of PAO [63] reveal a largescale anisotropy A 1 /A iso 1 = 4.8 at a 5.2σ confidence level, but the anisotropy dipole points to the declination δ = −24 +24 −13 which if outside of the YEASa's field of view. On the whole, the Yakutsk data do not show a statistically significant deviation [62] from the null hypothesis [65].…”

Section: B Zenith Angular Distribution Of Cosmic Raysmentioning

confidence: 99%

“…There is also a possibility to estimate the statistical power of the method in a situation when there is a separable source (SS) of CR and we need to calculate the upper limit for the fraction of the UHECR flux from it in the total background. Let this SS is presented within the declination interval, at right ascension α SS and introduces the f SS fraction to the (PAO 2017 [63]); 0 • < δ < 90 • (Y 2002 [64]); our latest results [65] are denoted by the declination intervals ∆δ = 15 • . (b) Upper limit of SS fraction in declination bins.…”

Section: B Zenith Angular Distribution Of Cosmic Raysmentioning

confidence: 99%

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Status of the Yakutsk air shower array and future plans

Alekseev,

Atlasov,

Bolotnikov

et al. 2021

Preprint

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The Yakutsk Extensive Air Shower Array has been continuously operating for more than 50 years (since 1970) and up until recently it has been one of world's largest ground-based instruments aimed at studying the properties of cosmic rays in the ultra-high energy domain. In this report we discuss results recently obtained at the array -on cosmic rays energy spectrum, mass composition and directional anisotropy -and how they fit into the world data. Special attention is paid to the measurements of muonic component of extensive air showers. Theoretical results of particle acceleration at shocks are also briefly reviewed. Future scientific and engineering plans on the array modernization are discussed. I. INTRODUCTIONThe only way to study the properties of cosmic rays (CR) with energies above ∼ 10 15 eV is by registering extensive air showers (EAS) -cascades of secondary particles produced by high-energy CRs hitting Earth's atmosphere. On one hand by studying the EAS properties one can investigate hadron interactions at energies unreachable for terrestrial particle acceleration technology. On the other hand -EAS method provides the basis for obtaining crucial information on primary CR properties: their energy spectrum, mass composition and distribution of arrival directions on the celestial sphere. Hence, EAS study is a dedicated area of CR physics at the intersection of astrophysics and nuclear physics.

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“…In 2013, the age parameter of the lateral structure has been studied by Tapia by estimating the chemical composition of EAS particles [12]. Recently, (in 2018), Ivanov was studied the distribution of the zenith angle of the cosmic ray showers measured with the Yakutsk array and its application to the analysis of arrival directions in equatorial coordinates [13].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study of Extensive Air Shower Effects in Atmosphere by Simulating the Lateral structure of Several Cosmic Radiations

Jassim¹,

Al-Rubaiee²,

Al-Alawy³

2018

Ind. Jour. of Publ. Health Rese. & Develop.

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Extensive air showers (EAS) are a cascade of electromagnetic radiation and ionized particles that produced in the atmosphere through the interaction of a primary cosmic ray with the atom's nucleus in the air producing a huge amount of secondary particles such as X-ray, electrons, neutrons, muons, alpha particles, etc. In this work, EAS effects were demonstrated by estimating the lateral distribution function (LDF) at ultrahigh energies of the various cosmic ray particles. The LDF of charged particles such as electron and positron pair production, gamma and muons particles was simulated at ultrahigh energies 10 16 , 10 18 and 10 19 eV. The simulation was carried out using an air shower simulator called AIRES system version 2.6.0. The effect of the primary particles, energies and zenith angle (θ) on the LDF of charged particles produced in the EAS was taken into account. Comparison of LDF for charged particles and experimental results gave good agreement for electron and positron pair production and muons particles at 10 19 eV for θ= and .

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Zenith angle distribution of cosmic ray showers measured with the Yakutsk array and its application to the analysis of arrival directions in equatorial coordinates

Cited by 7 publications

References 45 publications

The Simulation and Parametrization of the Lateral Distribution Function in Eas at Ultra High Energies

The Simulation and Parametrization of the Lateral Distribution Function in Eas at Ultra High Energies

Status of the Yakutsk air shower array and future plans

Theoretical Study of Extensive Air Shower Effects in Atmosphere by Simulating the Lateral structure of Several Cosmic Radiations

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