Measurement of the exclusive $\gamma \gamma \to {\mu }^{+}{\mu }^{-}$ process in proton--proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

Abstract

The production of exclusive $\gamma \gamma \to {\mu }^{+}{\mu }^{-}$ events in proton--proton collisions at a centre-of-mass energy of 13 TeV is measured with the ATLAS detector at the LHC, using data corresponding to an integrated luminosity of 3.2 fb${}^{-1}$. The measurement is performed for a dimuon invariant mass of 12 GeV $<m_{{\mu }^{+}{\mu }^{-}}<$ 70 GeV. The integrated cross-section is determined within a fiducial acceptance region of the ATLAS detector and differential cross-sections are measured as a function of the dimuon invariant mass. The results are compared to theoretical predictions that include corrections for absorptive effects.

arXiv comment35 pages in total, author list starting page 19, 5 figures, 3 tables, submitted to PLB, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2016-13/

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