In the present work, the origin of antiprotons observed in cosmic rays (above the atmosphere) is analyzed in details. We have considered the origin of the primaries, (which their interactions with the interstellar medium is one of the most important sources of antiprotons) is a supernova type II then used a diffusion model for their propagation. We have used the latest parameterization for antiproton production cross section in pp collisions (instead of well known parameterization introduced by Tan et al.) as well as our calculated residence time for primaries. The resulted intensity shows the secondary antiprotons produced in pp collisions in the galaxy, have a high population as one can not consider an excess for extragalactic antiprotons. Also there is a high degree of uncertainty in different parameters.
Davoudifar,P. and Fatemi,S. (2019). Detailed analysis of observed antiprotons in cosmic rays. Iranian Journal of Physics Research, 9(3), 291-291.
MLA
Davoudifar,P. , and Fatemi,S. . "Detailed analysis of observed antiprotons in cosmic rays", Iranian Journal of Physics Research, 9, 3, 2019, 291-291.
HARVARD
Davoudifar P., Fatemi S. (2019). 'Detailed analysis of observed antiprotons in cosmic rays', Iranian Journal of Physics Research, 9(3), pp. 291-291.
CHICAGO
P. Davoudifar and S. Fatemi, "Detailed analysis of observed antiprotons in cosmic rays," Iranian Journal of Physics Research, 9 3 (2019): 291-291,
VANCOUVER
Davoudifar P., Fatemi S. Detailed analysis of observed antiprotons in cosmic rays. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2019; 9(3): 291-291.
