# Ultra High Energy Cosmic Rays 2018

Oct 8 – 12, 2018
Ecole Supérieure de Chimie, Paris
Europe/Paris timezone

## Ultra high energy cosmic rays simulations with CONEX code

Oct 9, 2018, 10:33 AM
3m
Main Hall (Ecole Supérieure de Chimie)

### Main Hall

#### Ecole Supérieure de Chimie

Chimie Paris Tech
POSTER

### Speaker

Dr Mohamed Cherif TALAI (Badji Mokhtar University of Annaba, Department of Physics )

### Description

Nowadays, ultra high energy cosmic rays (UHECR) are subject to intense research of great interest. The existence of such rays with an energy above $10^{20}$ eV is contradicted by the limit GZK due to photo-pion production, or by nuclei photo-disintegration, in the interaction of UHECR with the cosmic microwave background.
In this work, detailed simulations of extensive air showers have been carried out with the help of CONEX program in order to evaluate the shower maximum depth longitudinal profile, $X_{max}$. This parameter and its fluctuations are very sensitive to the primary particle mass.

### Primary author

Dr Mohamed Cherif TALAI (Badji Mokhtar University of Annaba, Department of Physics )

### Co-author

Ghazala LAKEL (Badji Mokhtar University of Annaba, Department of Physics)