Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies
Coulomb effects on charged pion transverse momentum spectra measured in Au+Au collisions at RHIC-BES energies are investigated. From these spectra the π-/π+ ratios as a function of transverse momentum are obtained and used to extract the “Coulomb kick”, pc (a momentum change due to the Coulomb inter...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2018/3865856 |
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| _version_ | 1832561169976524800 |
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| author | Catalin Ristea Oana Ristea Alexandru Jipa |
| author_facet | Catalin Ristea Oana Ristea Alexandru Jipa |
| author_sort | Catalin Ristea |
| collection | DOAJ |
| description | Coulomb effects on charged pion transverse momentum spectra measured in Au+Au collisions at RHIC-BES energies are investigated. From these spectra the π-/π+ ratios as a function of transverse momentum are obtained and used to extract the “Coulomb kick”, pc (a momentum change due to the Coulomb interaction), and initial pion ratio for three different collision energies and various centrality classes. The Coulomb kick shows a decrease with the increase of beam energy and a clear centrality dependence, with larger values for the most central collisions. The results are connected with the kinetic freeze-out dynamics. |
| format | Article |
| id | doaj-art-b1101dba724c45e4b83b0aafa814822a |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-b1101dba724c45e4b83b0aafa814822a2025-02-03T01:25:51ZengWileyAdvances in High Energy Physics1687-73571687-73652018-01-01201810.1155/2018/38658563865856Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic EnergiesCatalin Ristea0Oana Ristea1Alexandru Jipa2Faculty of Physics, University of Bucharest, Magurele, Bucharest, RomaniaFaculty of Physics, University of Bucharest, Magurele, Bucharest, RomaniaFaculty of Physics, University of Bucharest, Magurele, Bucharest, RomaniaCoulomb effects on charged pion transverse momentum spectra measured in Au+Au collisions at RHIC-BES energies are investigated. From these spectra the π-/π+ ratios as a function of transverse momentum are obtained and used to extract the “Coulomb kick”, pc (a momentum change due to the Coulomb interaction), and initial pion ratio for three different collision energies and various centrality classes. The Coulomb kick shows a decrease with the increase of beam energy and a clear centrality dependence, with larger values for the most central collisions. The results are connected with the kinetic freeze-out dynamics.http://dx.doi.org/10.1155/2018/3865856 |
| spellingShingle | Catalin Ristea Oana Ristea Alexandru Jipa Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies Advances in High Energy Physics |
| title | Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies |
| title_full | Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies |
| title_fullStr | Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies |
| title_full_unstemmed | Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies |
| title_short | Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies |
| title_sort | coulomb interaction effects on pion production in au au collisions at relativistic energies |
| url | http://dx.doi.org/10.1155/2018/3865856 |
| work_keys_str_mv | AT catalinristea coulombinteractioneffectsonpionproductioninauaucollisionsatrelativisticenergies AT oanaristea coulombinteractioneffectsonpionproductioninauaucollisionsatrelativisticenergies AT alexandrujipa coulombinteractioneffectsonpionproductioninauaucollisionsatrelativisticenergies |