Detailed analysis of observed antiprotons in cosmic rays
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 the...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2009-12-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-428&slc_lang=en&sid=1 |
| _version_ | 1819155731976290304 |
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| author | P Davoudifar SJ Fatemi |
| author_facet | P Davoudifar SJ Fatemi |
| author_sort | P Davoudifar |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-22T15:41:39Z |
| format | Article |
| id | doaj.art-7a87bb5d2aff4bd89042537e0d6bf6c6 |
| institution | Directory Open Access Journal |
| issn | 1682-6957 |
| language | English |
| last_indexed | 2024-12-22T15:41:39Z |
| publishDate | 2009-12-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-7a87bb5d2aff4bd89042537e0d6bf6c62022-12-21T18:21:07ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572009-12-0193291291Detailed analysis of observed antiprotons in cosmic raysP DavoudifarSJ FatemiIn 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.http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-428&slc_lang=en&sid=1cosmic raysinterstellar mediumcosmic rays (origin) |
| spellingShingle | P Davoudifar SJ Fatemi Detailed analysis of observed antiprotons in cosmic rays Iranian Journal of Physics Research cosmic rays interstellar medium cosmic rays (origin) |
| title | Detailed analysis of observed antiprotons in cosmic rays |
| title_full | Detailed analysis of observed antiprotons in cosmic rays |
| title_fullStr | Detailed analysis of observed antiprotons in cosmic rays |
| title_full_unstemmed | Detailed analysis of observed antiprotons in cosmic rays |
| title_short | Detailed analysis of observed antiprotons in cosmic rays |
| title_sort | detailed analysis of observed antiprotons in cosmic rays |
| topic | cosmic rays interstellar medium cosmic rays (origin) |
| url | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-428&slc_lang=en&sid=1 |
| work_keys_str_mv | AT pdavoudifar detailedanalysisofobservedantiprotonsincosmicrays AT sjfatemi detailedanalysisofobservedantiprotonsincosmicrays |