Electromagnetic processes with quasireal photons in Pb plus Pb collisions: QED, QCD, and the QGP
- NázevTitle
- Electromagnetic processes with quasireal photons in Pb plus Pb collisions: QED, QCD, and the QGPElectromagnetic processes with quasireal photons in Pb plus Pb collisions: QED, QCD, and the QGP
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- P. Steinberg, M. Aaboud, G. Aad, B. Abbott, B. Ali, K. Augsten, D. Caforio, P. Gallus, M. Havránek, Z. Hubáček, M. Myška, R. Novotný, S. Pospíšil, T. Slavíček, K. Smolek, M. Solar, A. Sopczak, M. Suk, V. Vacek, P. Vokáč, V. Vrba
- KonferenceConference
- 27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (2018-05-14)
- ExperimentCollaboration
- ATLAS
- DOIDOI
- 10.1016/j.nuclphysa.2018.10.087
- Časopis / citaceJournal / citation
- Nuclear Physics A 982, 259-262 (2019) · ISSN 0375-9474
- RokYear
- 2019
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Získávání nových poznatků o mikrosvětě v infrastruktuře CERNAcquiring new pieces of knowledge about micro-world in CERN research infrastructure
- Plný text (open access)Full text (open access)
- https://www.sciencedirect.com/science/article/pii/S0375947418303749/pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
Electromagnetic processes, both photon-photon and photon-nucleus, are shown to be useful in studying aspects of QED, QCD, and potentially the QGP. Using lead-lead collisions at root s(NN) = 5.02 TeV, the ATLAS detector has performed measurements of exclusive dimuon production, light-by-light scattering (via exclusive diphoton production), and photo-nuclear dijet production. These are all important examples of ultraperipheral collisions, where the nuclei do not interact hadronically. A recent study of the opening angles of dimuons produced in hadronic heavy-ion collisions, after subtracting heavy-flavor backgrounds, demonstrates that the dimuons carry information correlated with the overlap geometry, potentially about the density of charges in the QGP itself.
Electromagnetic processes, both photon-photon and photon-nucleus, are shown to be useful in studying aspects of QED, QCD, and potentially the QGP. Using lead-lead collisions at root s(NN) = 5.02 TeV, the ATLAS detector has performed measurements of exclusive dimuon production, light-by-light scattering (via exclusive diphoton production), and photo-nuclear dijet production. These are all important examples of ultraperipheral collisions, where the nuclei do not interact hadronically. A recent study of the opening angles of dimuons produced in hadronic heavy-ion collisions, after subtracting heavy-flavor backgrounds, demonstrates that the dimuons carry information correlated with the overlap geometry, potentially about the density of charges in the QGP itself.