Speaker
Description
The Circular Electron--Positron Collider (CEPC) requires a robust, scalable, and maintainable software ecosystem to support detector design, simulation, reconstruction, and physics analysis for a next-generation Higgs factory. CEPC Software (CEPCSW) is integrated with the Key4hep/EDM4hep ecosystem and builds on widely used HEP software, including the Gaudi event-processing framework, DD4hep for detector description, Geant4 for detector simulation, and ROOT for data analysis.
This contribution reports the current status and recent progress of the CEPC core software, emphasizing its architecture, key components, and development workflow. The framework combines modern C++ and Python toolchains with a modular reconstruction chain and a unified geometry and conditions data model for long-term stability and reproducibility. We describe the continuous-integration and validation strategy, the versioned release process, and an automated performance-validation system that uses Kafka to orchestrate and execute validation steps. We also summarize recent developments, including simulation with the Gausinno framework, Diffusion Transformer (DiT)-based fast-simulation interfaces, reconstruction performance optimizations, and expanded analysis toolkits.
These developments provide the technical foundation for completing the Reference Detector TDR and outline a roadmap toward future data taking.
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