Abstract
Powerful flexible computer codes are essential for the design and optimisation of accelerator and experiments. We briefly review what already exists and what is needed in terms of accelerator codes. For the FCC-ee, it will be important to include the effects of beamstrahlung and beam–beam interaction as well as machine imperfections and sources of beam-induced backgrounds relevant for the experiments and consider the possibility of beam polarisation. The experiment software Key4hep, which aims to provide a common software stack for future experiments, is described, and the possibility of extending this concept to machine codes is discussed. We analyse how to interface and connect the accelerator and experiment codes in an efficient and flexible way for optimisation of the FCC-ee interaction region design and discuss the possibility of using shared data formats as an interface.
Highlights
The international Future Circular Collider (FCC) study aims to design p-p, e+e− and e-p colliders to be built in a new 100 km tunnel in the Geneva region
We give an overview of the existing accelerator codes related to the interaction region and machine detector interface (MDI) design in Sect. 2; in Sect. 3, we describe the experiment software and the current strategy to interface the accelerator and experiment codes, and in Sect. 4, we discuss the geometrical description of the relevant elements
The software used in MDI studies must be able to simulate in detail what happens in the interaction region
Summary
The international Future Circular Collider (FCC) study aims to design p-p, e+e− and e-p colliders to be built in a new 100 km tunnel in the Geneva region. The e+e− collider (FCC-ee) has a centre of mass energy range between 91.2 and 365 GeV with instantaneous luminosities as high as 2.3 × 1036cm−2s−1 and 1.55 × 1034cm−2s−1, respectively [1]. The design of the interaction region is crucial to reach such unprecedented energies and luminosities
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