Speaker
Description
The Cool Copper Collider (C3) is a new concept for a Higgs Factory based on cryogenic-copper distributed-coupling accelerator technology that promises efficiency and high gradient. In this talk, we will discuss the ongoing sustainability studies for C3, which. will be operated at 250 and 550 GeV center-of-mass energy. We introduce several strategies to reduce the power needs for C3 without modifications in the ultimate physics reach. We also propose a metric to compare the carbon costs of Higgs factories, balancing physics reach, energy needs, and carbon footprint for both construction and operation, and compare C3 with other Higgs factory proposals – ILC, CLIC, FCC-ee and CEPC – within this framework. We conclude that the compact 8 km footprint and the possibility for cut-and-cover construction make C3 a compelling option for a sustainable Higgs factory. More broadly, the developed methodology serves as a starting point for evaluating and minimizing the environmental impact of future colliders without compromising their physics potential.
