In the News
Cool Copper Collider most environmentally friendly among Higgs factory designs, finds study
November 15, 2023 • Physics World
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The researchers found that, in general, linear accelerators are more environmentally friendly than circular designs. This is because their compact size simplifies construction and reduces the amount of material needed. Indeed, tunnel lengths for future circular accelerators approach 100 km in length, while the linear options are around 10 km long.
This 10-fold difference in length significantly reduces the use of concrete, which has a significant carbon footprint, but also allows for simpler construction methods. Overall, the team says that building the main tunnels for the FCC and CEPC would produce around 578 and 638 kilotonnes of carbon dioxide equivalents (CO2e), respectively, compared with 73 and 144 kilotonnes CO2e for the main tunnels of the CLIC and C3, respectively. ...
Aligning future colliders at SLAC
September 1, 2023 • CERN Courier
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Given the global uncertainties around each proposal, it is prudent to investigate alternative plans based on technologies that could enable compact designs and possibly provide a roadmap to extend the energy reach of future colliders. As also highlighted in the Snowmass Energy Frontier report, consideration should be given to the timely realisation of a Higgs factory in the US as an international effort. For instance, the Cool Copper Collider (C3) is a new and even more compact proposal for a Higgs-producing linear collider. It was developed during Snowmass 2021 and made its debut at LCWS with more than 15 talks and five posters. This proposal would use normal-conducting RF cavities to achieve a collision energy of 500 GeV with an 8 km-long collider, making it significantly smaller and likely more cost-effective than other proposed Higgs factories....
A “Retro” Collider Design for a Higgs Factory
October 6, 2022 • Physics 15, 155
The Cool Copper Collider is a new proposal for a Higgs-producing linear collider that would be more compact than other collider designs.
In July, particle physicists in the US completed the Snowmass process—a decadal community planning exercise that forges a vision of scientific priorities and future facilities. Organized by the Division of Particles and Fields of the American Physical Society, this year’s Snowmass meetings considered a range of plans including neutrino experiments and muon colliders...
