The Circular Electron Positron Collider (CEPC) is a large-scale scientific project proposed by the Chinese high-energy physics community.
The CEPC accelerator Technical Design Report (TDR) has been released in 2023.
The collider's energy scale ranges from Z-pole at 91 GeV to W+W− at 160 GeV, ZH at 240 GeV, and up to tˉt at 360 GeV.
It will be a large Higgs and Z factory to allow precise measurements of their properties and searches for new physics beyond the Standard Model (SM).
In the updated CPEC Physics and Detector Technical Design Report, the baseline design concept consists of a large gaseous Time Projection Chamber (TPC) as the main tracker detector (MTK).
The TPC using high granularity pixel readout can provide up to thousands of 3D space points, with a single hit resolution of approximately 100 μm in the r-φ plane, and it will be a promising technology, especially at the high luminosity Z-pole.
In this paper, we will present the feasibility and progress of the high-precision TPC technology for CEPC Z-pole run and outline the next steps for developing pixelated TPC technology for CEPC Physics and Detector TDR.
