Design Initiatives for a 10 TeV pCM Wakefield Collider*

The recently-released P5 Report [1] calls for a 10 TeV parton center-of-mass (pCM) collider that will be realized in the coming decades. The report highlights advanced wakefield accelerators as a candidate technology for ultra-high energy Linear Colliders. We will partner with HEP phenomenologists to determine the discovery potential of 10 TeV pCM e⁺e^- and γγ collisions and create a physics program for each scenario. At very high collision energies, beamstrahlung effects are important. We will develop novel, high-performing beam-beam codes to provide the collision luminosity spectrum and backgrounds as inputs to HEP detector studies [2]. 

The design study includes particle sources, damping rings, and linacs based on plasma and structure-based wakefield accelerators [3,4,5,6]. We explore compact Beam Delivery Systems that use plasma lenses and investigate their impact on the design of the Machine-Detector Interface [2]. We will work with HEP experimentalists to optimize detectors for 10 TeV e⁺e^- and γγ collisions. The results of the design study will define the necessary technology demonstrations to be performed at Beam Test Facilities in the U.S. [7] and abroad. There are synergies between the design of a 10 TeV linear collider and Higgs Factory linear colliders. We will pursue tools and innovations that are broadly useful to the collider community and we hope to contribute to the ongoing development of Higgs Factories while soliciting advice from the HEP community on the 10 TeV pCM wakefield collider design.