We study the sensitivity of the Compact Linear Collider (CLIC) to an additional neutral Higgs boson H through the vector boson fusion process e+e−→Hννˉ, followed by the decay H→W+W−, with both W bosons decaying leptonically, resulting in a dilepton plus missing transverse energy final state. Within the framework of the Two Higgs Doublet Model, where both production and decay are governed by the Higgs mixing angle cos(β−α), we perform a detector-level analysis and show that a high-energy CLIC can probe H via this channel, allowing a direct measurement of the HWW coupling.
@article{arxiv.2605.13078,
title = {Possibility of Probing an Extra Higgs Boson at the Compact Linear Collider},
author = {Mohamed Krab},
journal= {arXiv preprint arXiv:2605.13078},
year = {2026}
}
Comments
10 pages, 4 figures; contribution to the proceedings of the International Workshop on Future Linear Colliders (LCWS2025), 20-24 October 2025, Valencia, Spain; published in The European Physical Journal Plus