| Issue |
EPJ Web Conf.
Volume 276, 2023
The 20th International Conference on Strangeness in Quark Matter (SQM 2022)
|
|
|---|---|---|
| Article Number | 06011 | |
| Number of page(s) | 4 | |
| Section | Other Topics | |
| DOI | https://doi.org/10.1051/epjconf/202327606011 | |
| Published online | 01 March 2023 | |
https://doi.org/10.1051/epjconf/202327606011
Thermal radiation and direct photon production measurements with dielectrons in Pb–Pb and pp collisions
1
Center for Nuclear Study, the University of Tokyo,
Japan
* e-mail: hikari.murakmi@cern.ch
Published online: 1 March 2023
The latest ALICE results on dielectron measurements in Pb–Pb collisions at √SNN = 5.02 TeV, and in minimum-bias (MB) and high-multiplicity (HM) pp collisions at √S = 13 TeV with LHC Run 2 data are reported. The results are compared to the predictions of dielectron yields from known hadronic sources and thermal radiation from the medium. The contribution of virtual direct photons is extracted from the data by fitting the measured invariant mass distributions. We present the direct to inclusive photon ratio, as well as the direct photon yield in both pp and central Pb–Pb collisions.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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