Sustainability Strategy for the Cool Copper Collider

Abstract

The particle physics community has agreed that an electron-positron collider is the next step for continued progress in this field, giving a unique opportunity for a detailed study of the Higgs boson. Several proposals are currently under evaluation of the international community. Any large particle accelerator will be an energy consumer and so, today, we must be concerned about its impact on the environment. This paper evaluates the carbon impact of the construction and operations of one of these Higgs factory proposals, the Cool Copper Collider. It introduces several strategies to lower the carbon impact of the accelerator. It proposes a metric to compare the carbon costs of Higgs factories, balancing physics reach, energy needs, and carbon footprint for both construction and operations, and compares the various Higgs factory proposals within this framework. For the Cool Copper Collider, the compact 8 km footprint and the possibility for cut-and-cover construction greatly reduce the dominant contribution from embodied carbon.

arXiv comment20 Pages, 6 Figures

References in corpus (5)

• Constraining the CP structure of Higgs-fermion couplings with a global LHC fit, the electron EDM and baryogenesis
• Model-independent analysis of Higgs spin and CP properties in the process $e^{+}{e}^{-}\to t\bar{t}\Phi$
• Report of the Snowmass 2021 Collider Implementation Task Force
• Experimental demonstration of particle acceleration with normal conducting accelerating structure at cryogenic temperature
• High Gradient Testing of off-Axis Coupled C-band Cu and CuAg Accelerating Structures

Cited by in corpus (3)

• Luminosity and Beam-Induced Background Studies for the Cool Copper Collider
• Know your footprint -- Evaluation of the professional carbon footprint for individual researchers in high energy physics and related fields
• Environmental sustainability in basic research: a perspective from HECAP+