The polarization of thermal dileptons emitted in high-energy heavy-ion collisions
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866916061759143936 |
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| author | Gao, Han Wu, Xiang-Yu Gale, Charles Jackson, Greg Jeon, Sangyong |
| author_facet | Gao, Han Wu, Xiang-Yu Gale, Charles Jackson, Greg Jeon, Sangyong |
| contents | This work presents calculations of thermal dilepton emission and polarization observables. It features a comprehensive framework which comprises virtual photon spectral functions complete at next-to-leading-order in the strong coupling and iEBE-MUSIC hydrodynamic simulations. The polarization of thermal lepton pairs is shown to be sensitive to in-medium properties of the quark-gluon plasma. We consider Pb+Pb collisions performed in conditions specific to the LHC and examine the magnitude and behaviour of the polarization as measured in different frames, the effects of the pre-equilibrium gluon abundance, and we derive a one-to-one mapping between dielectron and dimuon polarization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_30180 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The polarization of thermal dileptons emitted in high-energy heavy-ion collisions Gao, Han Wu, Xiang-Yu Gale, Charles Jackson, Greg Jeon, Sangyong Nuclear Theory This work presents calculations of thermal dilepton emission and polarization observables. It features a comprehensive framework which comprises virtual photon spectral functions complete at next-to-leading-order in the strong coupling and iEBE-MUSIC hydrodynamic simulations. The polarization of thermal lepton pairs is shown to be sensitive to in-medium properties of the quark-gluon plasma. We consider Pb+Pb collisions performed in conditions specific to the LHC and examine the magnitude and behaviour of the polarization as measured in different frames, the effects of the pre-equilibrium gluon abundance, and we derive a one-to-one mapping between dielectron and dimuon polarization. |
| title | The polarization of thermal dileptons emitted in high-energy heavy-ion collisions |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2605.30180 |