Determination of the type and energy of a cosmic ray particle based on the spatial distribution function of Éerenkov light from extensive air showers

2006 ◽  
Vol 49 (6) ◽  
pp. 673-675 ◽  
Author(s):  
A. A. Al-Rubaiee ◽  
S. I. Sinegorskii
Keyword(s):  
Distribution Function ◽  
Spatial Distribution ◽  
Cosmic Ray ◽  
Extensive Air Showers ◽  
Air Showers ◽  
Spatial Distribution Function

Determination of the Spatial Distribution Function of Bohai Seismic Tectonic Area

2014 ◽  
Vol 1065-1069 ◽  
pp. 1530-1534
Author(s):  
Zhuo Juan Xie ◽  
Yue Jun Lu
Keyword(s):  
Distribution Function ◽  
Spatial Distribution ◽  
Seismic Hazard ◽  
Seismic Activity ◽  
Hazard Analysis ◽  
Probabilistic Seismic Hazard Analysis ◽  
Seismic Hazard Analysis ◽  
Probabilistic Seismic Hazard ◽  
Spatial Distribution Function

The spatial distribution function assigns seismicity parameters of seismic zone and belt to the potential earthquake source area seismic by the magnitude interval, determination of the spatial distribution function is one of the key technologies to comprehensive probabilistic seismic hazard analysis methods, and the results will directly influence seismic hazard analysis results of the calculated sites. However, the spatial distribution functions are hard to get by statistics due to serious lack of seismic samples, and evaluation factors used in the actual work are too complex and not independent, the spatial distribution function is lack of reliability. In this paper, Bohai seismic tectonic area is chosen as an example; geological data are obtained from the newly built offshore oil platform engineering in recent decades, while seismic activity data are obtained by checking from historical difficult seismic parameters. Five factors are adopted in this area, including potential seismic focus area, seismic tectonic, seismic activity level, long-term forecasts, and strong earthquake recurrence interval and construct empty segment. Spatial distribution function of Bohai Sea earthquake structure area is obtained by weighted comprehension; it reflects the spatial and temporal heterogeneity of seismic activities in the area, and provides the calculation parameters for the probabilistic seismic hazard analysis.

scholarly journals Extension of Cherenkov Light LDF Approximation for Yakutsk EAS Array

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
A. A. Al-Rubaiee ◽  
Y. Al-Douri ◽  
U. Hashim
Keyword(s):  
Distribution Function ◽  
Cosmic Ray ◽  
High Energy ◽  
Primary Energy ◽  
Cherenkov Light ◽  
Primary Proton ◽  
Air Showers ◽  
High Energies ◽  
Primary Particles

The simulation of the Cherenkov light lateral distribution function (LDF) in extensive air showers (EAS) was performed using CORSIKA code for configuration of Yakutsk EAS array at high energy range for different primary particles (p, Fe, and O2) and different zenith angles. Depending on Breit-Wigner function a parameterization of Cherenkov light LDF was reconstructed on the basis of this simulation as a function of primary energy. A comparison of the calculated Cherenkov light LDF with that measured on the Yakutsk EAS array gives the possibility of identification of the particle initiating the shower and determination of its energy in the knee region of the cosmic ray spectrum. The extrapolation of approximated Cherenkov light LDF for high energies was obtained for primary proton and iron nuclei.

scholarly journals A novel spatial-distribution-function of electron beam-induced vapor plume for analyzing EBPVD thickness

AIP Advances ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 085108
Author(s):  
Ching-Yen Ho ◽  
Bor-Chyuan Chen ◽  
Chang-Wei Xiong ◽  
Si-Li Fan ◽  
Song-Feng Wan ◽  
...  
Keyword(s):  
Distribution Function ◽  
Spatial Distribution ◽  
Electron Beam ◽  
Spatial Distribution Function ◽  
Vapor Plume

scholarly journals Investigating the influence of diffractive interactions on ultrahigh-energy extensive air showers

2018 ◽  
Vol 33 (26) ◽  
pp. 1850153 ◽  
Author(s):  
L. B. Arbeletche ◽  
V. P. Gonçalves ◽  
M. A. Müller
Keyword(s):  
Phenomenological Models ◽  
Cosmic Ray ◽  
Extensive Air Showers ◽  
Ultrahigh Energy ◽  
Air Showers ◽  
Hadronic Interactions ◽  
Air Shower ◽  
Cosmic Ray Interactions ◽  
The Impact ◽  
Elasticity Number

The understanding of the basic properties of the ultrahigh-energy extensive air showers is dependent on the description of hadronic interactions in an energy range beyond that probed by the LHC. One of the uncertainties present in the modeling of air showers is the treatment of diffractive interactions, which are dominated by nonperturbative physics and usually described by phenomenological models. These interactions are expected to affect the development of the air showers, since they provide a way of transporting substantial amounts of energy deep in the atmosphere, modifying the global characteristics of the shower profile. In this paper, we investigate the impact of diffractive interactions in the observables that can be measured in hadronic collisions at high energies and ultrahigh-energy cosmic ray interactions. We consider three distinct phenomenological models for the treatment of diffractive physics and estimate the influence of these interactions on the elasticity, number of secondaries, longitudinal air shower profiles and muon densities for proton-air and iron-air collisions at different primary energies. Our results demonstrate that even for the most recent models, diffractive events have a non-negligible effect on the observables and that the distinct approaches for these interactions, present in the phenomenological models, still are an important source of theoretical uncertainty for the description of the extensive air showers.

Sign in / Sign up

Export Citation Format

Share Document