You are being extremely disingenuous. The aim of the FCC is very explicitly to be a bigger hadron-hadron collider than the LHC. The FCC-ee that you mention is presented in all of CERNs papers as an intermediate goal, a use for the gigantic tunnel they'll need for the FCC-hh (the FCC), while the technology for actually doing the most important work is being developed [0].
What's more, much of CERN's own literature on the FCC references fanciful ideas like finding WIMPs, "ruling out many classes of dark matter particles", finding/limiting the search space for axions, or in general, putting boundaries on theories that have no specific basis and no fundamental bounds on their parameters beyond "we havent found them yet, so they can't be this large/small/strongly interacting/etc". Here you'll find at least some claims currently up on CERN's FCC site about probing dark matter [1].
> A key recommendation of the 2020 update to the European Strategy for Particle Physics is that Europe, in collaboration with the worldwide particle physics community, should undertake a feasibility study for a next-generation hadron collider. (emp. mine)
> The goal of the FCC is to push the energy and intensity frontiers of particle colliders, with the aim of reaching collision energies of 100 TeV in the search for new physics.
> However there is a very broad class of models for which theory motivates dark matter candidates with masses in the range of GeV to few tens of TeV. The FCC would break new ground in the search for dark matter in the form of weakly interacting massive particles, by covering a wide array of potential signals predicted by either production of dark matter, or production of the particles mediating its interactions with ordinary matter. FCC-ee and FCC-hh offer complementary ways to search for dark matter that could consist of lighter particles (i.e. sterile neutrinos) or could be produced in the decays of the Higgs boson.
What's more, much of CERN's own literature on the FCC references fanciful ideas like finding WIMPs, "ruling out many classes of dark matter particles", finding/limiting the search space for axions, or in general, putting boundaries on theories that have no specific basis and no fundamental bounds on their parameters beyond "we havent found them yet, so they can't be this large/small/strongly interacting/etc". Here you'll find at least some claims currently up on CERN's FCC site about probing dark matter [1].
[0] https://fcc.web.cern.ch/overview
> A key recommendation of the 2020 update to the European Strategy for Particle Physics is that Europe, in collaboration with the worldwide particle physics community, should undertake a feasibility study for a next-generation hadron collider. (emp. mine)
> The goal of the FCC is to push the energy and intensity frontiers of particle colliders, with the aim of reaching collision energies of 100 TeV in the search for new physics.
[1] https://fcc.web.cern.ch/physics
> However there is a very broad class of models for which theory motivates dark matter candidates with masses in the range of GeV to few tens of TeV. The FCC would break new ground in the search for dark matter in the form of weakly interacting massive particles, by covering a wide array of potential signals predicted by either production of dark matter, or production of the particles mediating its interactions with ordinary matter. FCC-ee and FCC-hh offer complementary ways to search for dark matter that could consist of lighter particles (i.e. sterile neutrinos) or could be produced in the decays of the Higgs boson.