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Dilepton production from $\gamma\gamma$ fusion in hadronic Pb+Pb collisions with ATLAS

Measurements of muon pairs produced via two-photon scattering processes in hadronic (i.e. Non-UPC) Pb+Pb collisions are presented. These non-UPC measurements provide a novel test of strong-field QED and may be a potentially sensitive electromagnetic probe of the quark-gluon plasma. These measurement...

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Detalles Bibliográficos
Autor principal: Steinberg, Peter Alan
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2863785
Descripción
Sumario:Measurements of muon pairs produced via two-photon scattering processes in hadronic (i.e. Non-UPC) Pb+Pb collisions are presented. These non-UPC measurements provide a novel test of strong-field QED and may be a potentially sensitive electromagnetic probe of the quark-gluon plasma. These measurements include the dependence of the cross-section and angular correlation on the mean-$p_{\mathrm{T}}$ of the dimuon pair, the rapidity separation between the muons, and the pair angle relative to the second-order event plane, all measured differentially as a function of the Pb+Pb collision centrality. The presented results are compared with recent theory calculations.