Description
We explore the prospects of exclusive $W^+W^-$ production via
photon-photon fusion at the LHeC, operating at a center-of-mass energy
of 1.2 TeV [1]. Utilizing the clean experimental environment and high
luminosity of the LHeC [2,3], this process could provide a powerful
probe of electroweak interactions and possible deviations from SM,
particularly through anomalous quartic gauge couplings. We investigate the impact of dimension-8 operators that modify the $\gamma\gamma
W^+W^-$ vertex. Signal sensitivity for semileptonic decay channels of
the $W$ bosons is assessed using Monte Carlo simulations, including
detector effects through Delphes. Kinematic distributions and selection
strategies are optimized to suppress contributing backgrounds. Finally,
a statistical analysis is performed to set 95\% CL exclusion limits on
aQGC parameters.
[1] L. Forthomme, H. Khanpour, K. Piotrzkowski, Y. Yamazaki, High energy $\gamma\gamma$ interactions at the LHeC, paper in preparation.
[2] F. Ahmadova, K. André, The Large Hadron Electron Collider as a bridge project for CERN, arXiv:2503.17727 [hep-ex].
[3] P. Agostini, H. Aksakal, et al, The Large Hadron-Electron Collider at the HL-LHC, J. Phys. G 48 (2021) 11, 110501.
| Secondary track | T06 - Top and Electroweak Physics |
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