scholarly journals Primary particle type of the most energetic Fly's Eye air shower

Author(s):  
M RISSE
2006 ◽  
Vol 21 (supp01) ◽  
pp. 60-64
Author(s):  
T. HUEGE ◽  
H. FALCKE

As a basis for the interpretation of data gathered by LOPES and other experiments, we have carried out Monte Carlo simulations of geosynchrotron radio emission from cosmic ray air showers. The simulations, having been verified carefully with analytical calculations, reveal a wealth of information on the characteristics of the radio signal and their dependence on specific air shower parameters. In this article, we review the spatial characteristics of the radio emission, its predicted frequency spectrum and its dependence on important air shower parameters such as the shower zenith angle, the primary particle energy and the depth of the shower maximum, which can in turn be related to the nature of the primary particle.


2018 ◽  
Vol 73 (2) ◽  
pp. 179-186 ◽  
Author(s):  
V. I. Galkin ◽  
A. S. Borisov ◽  
R. Bakhromzod ◽  
V. V. Batraev ◽  
S. Z. Latipova ◽  
...  

2006 ◽  
Vol 151 (1) ◽  
pp. 96-98 ◽  
Author(s):  
M. Risse ◽  
P. Homola ◽  
R. Engel ◽  
D. Góra ◽  
D. Heck ◽  
...  

KnE Energy ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 136 ◽  
Author(s):  
A S Elshoukrofy ◽  
L Sveshnikova ◽  
E Postnikov ◽  
I Astapov ◽  
P Bezyazeekov ◽  
...  

The problem of chemical composition below the knee in the cosmic-ray energy spectrum has not yet been solved due to low statistics collected from direct experiments. In the HiSCORE experiment the lateral distribution functions (LDF) of Cherenkov light of EASs with energy greater than hundreds of TeV can be measured in detail for millions of individual events. A full steepness of LDF is sensitive to the depth of shower maximum and as a result to primary particle type. In this paper, we developed a parametric method of separation between heavy and light groups of nuclei using the ’knee-like’ approximation of LDF and taking into account measurement uncertainty.


1993 ◽  
Author(s):  
J. N. Capdevielee ◽  
P. Gabriel ◽  
H. J. Gils ◽  
P. Grieder ◽  
D. Heck ◽  
...  

2020 ◽  
Vol 467 ◽  
pp. 228301
Author(s):  
Yong Jiang ◽  
Shuai Liu ◽  
Yanwei Ding ◽  
Jinlong Jiang ◽  
Wenrong Li ◽  
...  

2011 ◽  
Author(s):  
M. Abou Bakr Othman ◽  
C. Allen ◽  
J. Belz ◽  
D. Besson ◽  
B. Farhang-Boroujeny ◽  
...  
Keyword(s):  

2016 ◽  
Vol 121 ◽  
pp. 04003
Author(s):  
Miguel A. Mostafá
Keyword(s):  

2015 ◽  
Vol 659 ◽  
pp. 394-398 ◽  
Author(s):  
Nutthaphon Liawthanyarat ◽  
Sarawut Rimdusit

Polybenzoxazine nanocomposites filled with three different sizes of silica nanoparticles are investigated for their mechanical and thermal properties. In this research, silica nanoparticles with primary particle sizes of 7, 14 and 40 nm were incorporated in polybenzoxazine matrix at a fixed content of 3% by weight. From the experimental results, the storage modulus of the polybenzoxazine nanocomposite was found to systematically increase with decreasing the particle sizes of nanosilica suggesting better reinforcement of the smaller particles. Glass transition temperature was found to slightly increase with the addition of the silica nanoparticles. The uniformity of the composite samples were also evaluated by thermogravimetric analysis to show good dispersion of the silica nanoparticles in the composite samples as a result of high processability of the benzoxazine resin used i.e. low A-stage viscosity with good wetting behaviors. Degradation temperature at 5% weight loss (Td,5) of polybenzoxazine nanocomposites filled with different particle sizes of silica nanoparticles was found to increase from the value of 325 °C of the neat polybenzoxazine to the maximum value of about 340 °C with an addition of the nanosilica of the smallest particle size used. Finally, the smaller nanosilica particle size was also found to show more pronounced effect on Td,5enhancement of the composite samples as a result of greater barrier effect from larger surface area of the smaller particles.


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