This analysis presents an observation of the photon-fusion production of W boson pairs using the CMS detector at the LHC. The total cross section of the W+W- production in photon fusion is measured using proton-proton collision data with an integrated luminosity of 138 fb-1 collected with the CMS detector in 2016-2018 at a center-of-mass energy of s=13\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s}=13 $$\end{document} TeV. Events are selected in the final state with one isolated electron and one isolated muon, and no additional tracks associated with the electron-muon production vertex. The total and fiducial production cross sections are 643-78+82\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {643}_{-78}<<^>>{+82} $$\end{document} fb and 3.96-0.51+0.53\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {3.96}_{-0.51}<<^>>{+0.53} $$\end{document} fb, respectively, in agreement with the standard model predictions of 631 +/- 126 fb and 3.87 +/- 0.77 fb. This agreement enables stringent constraints on anomalous quartic gauge couplings within a dimension-8 effective field theory framework.

Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Benato, L., Bergauer, T., et al. (2026). Measurement and effective field theory interpretation of the photon-fusion production cross section of a pair of W bosons in proton-proton collisions at √s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2026(6) [10.1007/JHEP06(2026)187].

Measurement and effective field theory interpretation of the photon-fusion production cross section of a pair of W bosons in proton-proton collisions at √s=13 TeV

Ciocci, M. A.;Turini, N.;
2026-01-01

Abstract

This analysis presents an observation of the photon-fusion production of W boson pairs using the CMS detector at the LHC. The total cross section of the W+W- production in photon fusion is measured using proton-proton collision data with an integrated luminosity of 138 fb-1 collected with the CMS detector in 2016-2018 at a center-of-mass energy of s=13\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s}=13 $$\end{document} TeV. Events are selected in the final state with one isolated electron and one isolated muon, and no additional tracks associated with the electron-muon production vertex. The total and fiducial production cross sections are 643-78+82\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {643}_{-78}<<^>>{+82} $$\end{document} fb and 3.96-0.51+0.53\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {3.96}_{-0.51}<<^>>{+0.53} $$\end{document} fb, respectively, in agreement with the standard model predictions of 631 +/- 126 fb and 3.87 +/- 0.77 fb. This agreement enables stringent constraints on anomalous quartic gauge couplings within a dimension-8 effective field theory framework.
2026
Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Benato, L., Bergauer, T., et al. (2026). Measurement and effective field theory interpretation of the photon-fusion production cross section of a pair of W bosons in proton-proton collisions at √s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2026(6) [10.1007/JHEP06(2026)187].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1324475