Dielectron measurements in pp and Pb–Pb colllisions with ALICE at the LHC
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The production of low-mass dielectrons is one of the most promising tools for the investigation of chiral symmetry restoration and thermal radiation from the QGP created in heavy-ion collisions. To single out the signal characteristics of the QGP, it is crucial to understand the primordial e+e− pair production in vacuum, i.e. in inelastic proton-proton (pp) collisions. Low-mass dielectrons have been measured with ALICE at the LHC in pp collisions at √ s = 7 and 13 TeV, and in Pb–Pb collisions at √ sNN = 2.76 TeV. An overview of the results on dielectron production is presented, together with their implications for the direct-photon and heavy-quark production.
CitationBailhache R, Acharya, Acosta, Adamová, Adolfsson, Aggarwal, et al. Dielectron measurements in pp and Pb–Pb colllisions with ALICE at the LHC. Nuclear Physics A. 2019;982:779-782
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