A new precision process at FCC-hh: the diphoton leptonic Wh channel

A bstract 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 → ℓνγγ . We estimate the sensitivity to the O φq 3 , O φ W , and O φ W ˜ SMEFT operators. We find that this channel will be competitive with fully leptonic WZ production in setting bounds on O φq 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 O φ W ˜ . However, the bounds on O φ W and O φ 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.