Excessing flux of secondary anti-protons assuming interstellar fractal medium

Doostmohammadi, Saeed; Fatemi, Seyed Jaliladin; Arjomand Kermani, Hamid; Mehdizadeh, Maryam; Soomandar, Somayeh

doi:10.22055/jrmbs.2017.13851.1061

Excessing flux of secondary anti-protons assuming interstellar fractal medium

Document Type : Full length research Paper

Authors

Saeed Doostmohammadi

Seyed Jaliladin Fatemi

Hamid Arjomand Kermani

Maryam Mehdizadeh

Somayeh Soomandar

Faculty of Physics, Shahid Bahonar University of Kerman, Kerman, Iran

10.22055/jrmbs.2017.13851.1061

Abstract

Among the anti-particles of cosmic rays, anti-protons are of particular importance. In cosmic ray spectrum, the major part of anti-protons is outcome of collision of cosmic rays with interstellar medium gas. Considering the non-homogenous or fractal interstellar medium, proposed by Lagutinet. al., excessing flux of secondary anti-protons is calculated. This excessing flux is probable component of extra galactic anti-protons. In addition, the ratio of extra galactic and galactic anti protons to cosmic rays protons flux as a reason of matter- anti matter asymmetry and also energy density of extra galactic anti protons is calculated. At present work the mentioned items have been done respectively.

Keywords

cosmic rays

Galactic and Extra Galactic Anti-Protons

Fractal Interstellar Medium