Abstract: From its inception, the Advanced Accelerator field has considered future colliders as the ultimate goal of high-gradient accelerator technology. In the decades that followed, there has been rapid experimental progress and a conceptual evolution of what future colliders based on Wakefield Accelerator (WFA) technology might look like. The recent P5 Report calls for “vigorous R&D toward a cost-effective 10 TeV pCM collider based on proton, muon, or possible wakefield technologies.” Specifically, the P5 Report requests “the delivery of an end-to-end design concept, including cost scales, with self-consistent parameters throughout.” In this presentation, I will outline the requirements and challenges for a 10 TeV WFA collider. The study will investigate the physics case for electron-positron, gamma-gamma, and electron-electron collisions at 10 TeV. The study will identify R&D topics that mutually benefit 10 TeV collider design and near-term Higgs Factories. Finally, I will describe a community-driven design based on working groups and performance metrics to produce a unified 10 TeV collider design concept, including a timeline with deliverables.

Bio: Spencer Gessner is a Staff Scientist at SLAC National Accelerator Laboratory. His research includes plasma wakefield acceleration at FACET-II and future collider design. Prior to SLAC, Spencer was a fellow at CERN on the AWAKE experiment, where he served as Run Coordinator. He earned his PhD from Stanford studying hollow channel acceleration of positron beams at FACET. Spencer is the recipient of the APS DPB Thesis Prize and the EuroNNAc Simon van der Meer Early Career Award. Spencer was a member of the Snowmass Implementation Task Force and presented on AAC Technology to the P5 Panel at the SLAC Townhall.

ATS Seminar Organisers: A. Dallocchio (EN), E. Metral (BE), M. Modena (ATS-DO), T. Stora (SY)