Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions
We investigate the charge-dependent flow induced by magnetic and electric fields in heavy-ion collisions. We simulate the evolution of the expanding cooling droplet of strongly coupled plasma hydrodynamically, using the iEBE-VISHNU framework, and add the magnetic and electric fields as well as the e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2018
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| Online Access: | http://hdl.handle.net/1721.1/119188 https://orcid.org/0000-0001-5812-8718 |
| _version_ | 1826205557569093632 |
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| author | Gürsoy, Umut Kharzeev, Dmitri Marcus, Eric Rajagopal, Krishna Shen, Chun |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Gürsoy, Umut Kharzeev, Dmitri Marcus, Eric Rajagopal, Krishna Shen, Chun |
| author_sort | Gürsoy, Umut |
| collection | MIT |
| description | We investigate the charge-dependent flow induced by magnetic and electric fields in heavy-ion collisions. We simulate the evolution of the expanding cooling droplet of strongly coupled plasma hydrodynamically, using the iEBE-VISHNU framework, and add the magnetic and electric fields as well as the electric currents they generate in a perturbative fashion. We confirm the previously reported effect of the electromagnetically induced currents [Gursoy et al., Phys. Rev. C 89, 054905 (2014)PRVCAN0556-281310.1103/PhysRevC.89.054905], that is a charge-odd directed flow Δv₁ that is odd in rapidity, noting that it is induced by magnetic fields (à la Faraday and Lorentz) and by electric fields (the Coulomb field from the charged spectators). In addition, we find a charge-odd Δv₃ that is also odd in rapidity and that has a similar physical origin. We furthermore show that the electric field produced by the net charge density of the plasma drives rapidity-even charge-dependent contributions to the radial flow 〈p[subscript T]〉 and the elliptic flow Δv₂. Although their magnitudes are comparable to the charge-odd Δv₁ and Δv₃, they have a different physical origin, namely the Coulomb forces within the plasma. |
| first_indexed | 2024-09-23T13:15:21Z |
| format | Article |
| id | mit-1721.1/119188 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:15:21Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1191882022-09-28T12:57:00Z Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions Gürsoy, Umut Kharzeev, Dmitri Marcus, Eric Rajagopal, Krishna Shen, Chun Massachusetts Institute of Technology. Center for Theoretical Physics Rajagopal, Krishna We investigate the charge-dependent flow induced by magnetic and electric fields in heavy-ion collisions. We simulate the evolution of the expanding cooling droplet of strongly coupled plasma hydrodynamically, using the iEBE-VISHNU framework, and add the magnetic and electric fields as well as the electric currents they generate in a perturbative fashion. We confirm the previously reported effect of the electromagnetically induced currents [Gursoy et al., Phys. Rev. C 89, 054905 (2014)PRVCAN0556-281310.1103/PhysRevC.89.054905], that is a charge-odd directed flow Δv₁ that is odd in rapidity, noting that it is induced by magnetic fields (à la Faraday and Lorentz) and by electric fields (the Coulomb field from the charged spectators). In addition, we find a charge-odd Δv₃ that is also odd in rapidity and that has a similar physical origin. We furthermore show that the electric field produced by the net charge density of the plasma drives rapidity-even charge-dependent contributions to the radial flow 〈p[subscript T]〉 and the elliptic flow Δv₂. Although their magnitudes are comparable to the charge-odd Δv₁ and Δv₃, they have a different physical origin, namely the Coulomb forces within the plasma. United States. Department of Energy (Contract DE-SC0011090) United States. Department of Energy (Contract DE-FG-88ER40388) United States. Department of Energy (Contract DEAC02- 98CH10886) 2018-11-19T16:21:40Z 2018-11-19T16:21:40Z 2018-11 2018-09 2018-11-15T18:00:25Z Article http://purl.org/eprint/type/JournalArticle 2469-9985 2469-9993 http://hdl.handle.net/1721.1/119188 Gürsoy, Umut et al. "Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions." Physical Review C 98, 5 (November 2018): 055201 © American Physical Society https://orcid.org/0000-0001-5812-8718 en http://dx.doi.org/10.1103/PhysRevC.98.055201 Physical Review C Creative Commons Attribution http://creativecommons.org/licenses/by/3.0 application/pdf American Physical Society American Physical Society |
| spellingShingle | Gürsoy, Umut Kharzeev, Dmitri Marcus, Eric Rajagopal, Krishna Shen, Chun Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions |
| title | Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions |
| title_full | Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions |
| title_fullStr | Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions |
| title_full_unstemmed | Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions |
| title_short | Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions |
| title_sort | charge dependent flow induced by magnetic and electric fields in heavy ion collisions |
| url | http://hdl.handle.net/1721.1/119188 https://orcid.org/0000-0001-5812-8718 |
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