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Low mass dielectrons with ALICE

Low mass dielectrons, defined as electron-positron pairs with invariant masses below ~3 GeV/c², serve as penetrating probes of the hot and dense QCD medium created in heavy-ion collisions. Within this mass range, thermal radiation from the quark-gluon plasma (QGP) and in-medium modifications of vector mesons play significant roles. The ALICE experiment at the LHC, with its excellent tracking and particle identification capabilities, is uniquely equipped to measure dielectron spectra in the relevant mass range.

This seminar will present ALICE results on low mass dielectron production based on the data collected in LHC Run 2 and the status of the analysis of the data collected in LHC Run 3. In addition, expectations for future measurements in LHC Run 5 with the ALICE 3 detector will be discussed. The presentation will conclude with a short glimpse of the detector R&D relevant for a successful dielectron program in LHC Run 5.