Speaker
Description
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 $\mathcal{O}_{\varphi q}^{(3)}, \, \mathcal{O}_{\varphi\text{W}}$, and $\mathcal{O}_{\varphi\widetilde{\text{W}}}$ SMEFT operators. We find that this channel will be competitive with fully leptonic $WZ$ production in setting bounds on $\mathcal{O}_{\varphi q}^{(3)}$. We also find that the double differential distribution in the $p_T^h$ and the leptonic azimuthal angle can be exploited to enhance the sensitivity to $\mathcal{O}_{\varphi\widetilde{\text{W}}}$.
However, the bounds on $\mathcal{O}_{\varphi\text{W}}$ and $\mathcal{O}_{\varphi\widetilde{\text{W}}}$ we obtain in our analysis, though complementary and more direct, are not competitive with those coming from other measurements such as EDMs and inclusive Higgs measurements.
