A New Precision Process at FCC-hh: the diphoton leptonic Wh channel

Understand

The increase in luminosity and center of mass energy at the FCC-hh will open up new clean channels where BSM contributions are enhanced at high energy.

• In this paper we study one such channel, $Wh \to \ell\nu\gamma\gamma$.
• We estimate the sensitivity to the $\mathcal{O}_{\varphi q}^{(3)}$, $\mathcal{O}_{\varphi {W}}$, and $\mathcal{O}_{\varphi \widetilde {W}}$ SMEFT operators.
• We find that this channel will be competitive with fully leptonic $WZ$ production in setting bounds on $\mathcal{O}_{\varphi q}^{(3)}$.