Sensitivity physics expected to the measurement of the quartic WWγγ couplings at the LHeC and the FCC-he

2020/03/31 by E. Gurkanli, V. Ari, A. Gutiérrez-Rodríguez +2
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1088/1361-6471/ab9908

28 pages, 10 figures. arXiv admin note: text overlap with arXiv:1211.3100 by other authors

arxiv created 2020/08/08 · arxiv updated 2020/08/11

Abstract

We explore the physics expected sensitivity at the Large Hadron electron Collider (LHeC) and the Future Circular Collider-hadron electron (FCC-he) to search for the anomalous quartic WWγγ couplings in single W-boson production in association with a photon. We study the process ep → e^-γ^* p → eWγq'X via the subprocess γ^* q → Wγq'. The center-of-mass energies and luminosities of the LHeC are assumed to be √(s)=1.30, 1.98 TeV, \cal L=10-100 \rm fb^-1 and for the FCC-he √(s)=3.46, 5.29 TeV and \cal L=100-1000 \rm fb^-1 . With these energies and luminosities, we estimate bounds on the anomalous quartic WWγγ couplings at 95% C.L., which can be an order of magnitude stringent than the experimental limits report by ATLAS and CMS Collaborations at the LHC.

Citations

• Anomalous quartic ZZgammagamma couplings in gamma-proton collision at the LHC