Virtual Photons Shed Light on the Early Temperature of Dense QCD Matter
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866910436480253952 |
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| author | Churchill, Jessica Du, Lipei Gale, Charles Jackson, Greg Jeon, Sangyong |
| author_facet | Churchill, Jessica Du, Lipei Gale, Charles Jackson, Greg Jeon, Sangyong |
| contents | Dileptons produced during heavy-ion collisions represent a unique probe of the QCD phase diagram, and convey information about the state of the strongly interacting system at the moment their preceding off-shell photon is created. In this study, we compute thermal dilepton yields from Au+Au collisions performed at different beam energies, employing a (3+1)-dimensional dynamic framework combined with emission rates accurate at next-to-leading order in perturbation theory and which include baryon chemical potential dependencies. By comparing the effective temperature extracted from the thermal dilepton invariant mass spectrum with the average temperature of the fluid, we offer a robust quantitative validation of dileptons as effective probe of the early quark-gluon plasma stage. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_06951 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Virtual Photons Shed Light on the Early Temperature of Dense QCD Matter Churchill, Jessica Du, Lipei Gale, Charles Jackson, Greg Jeon, Sangyong Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment Dileptons produced during heavy-ion collisions represent a unique probe of the QCD phase diagram, and convey information about the state of the strongly interacting system at the moment their preceding off-shell photon is created. In this study, we compute thermal dilepton yields from Au+Au collisions performed at different beam energies, employing a (3+1)-dimensional dynamic framework combined with emission rates accurate at next-to-leading order in perturbation theory and which include baryon chemical potential dependencies. By comparing the effective temperature extracted from the thermal dilepton invariant mass spectrum with the average temperature of the fluid, we offer a robust quantitative validation of dileptons as effective probe of the early quark-gluon plasma stage. |
| title | Virtual Photons Shed Light on the Early Temperature of Dense QCD Matter |
| topic | Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2311.06951 |