Cairo University

MTPR Journal


Identification Of Nuclear Mass Range Of Primary Event From The Observation Of Shower In Ultra High Energetic Cosmic Rays At Energy ~ 106gev

M. H. M. Soleiman, S. S. Abdel-Aziz, A. Abdelfattah Omar
Identification of mass numbers concerning the nuclei beginning
the ignition of the atmospheric extensive air showers (EAS) is
vital in the studies of Ultra High Cosmic Rays Interactions
(UHCRI). The present study introduces a simple technique in
processing the shower data at the height of detector level (1400
m over sea-level) to identify the nucleus starting the cascade of
the shower. CORSIKA 7.6400, which is the EAS-generator is used
to generate EAS data at detection level of 1400 m over sea-level
and incidence energy ~ 106GeV. The data are analyzed and the
energy spectrum is obtained for the generated EAS. The EAS
spectra for light nuclei (1H and 4He), medium nuclei (24Mg), and
Heavy nuclei (48Ti, 52Cr, 56Fe) are obtained, totally and with
photons are subtracted. It is found that, the spectral slopes of
the tail of the spectra with photons subtracted depend on the
primary nuclei’s mass-number.

Vol./Issue: 19 , id: 260